Itemized gifts are loaded through June 30, 2026 for the 2025–2026 cycle. Later FEC reports are not processed yet, so recent totals are incomplete.
California
2025–2026 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| AGBEDE, AKINYEMI | Democratic | Senate, CA | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | Senate, CA | Challenger or open seat | FEC |
| FERREIRA, FRANK | Independent | Senate, CA | Challenger or open seat | FEC |
| INGRAM, DENARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| KUMAR, HARMESH | Democratic | Senate, CA | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | Senate, CA | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| SINGH, MAJOR | NOP | Senate, CA | Challenger or open seat | FEC |
| THEODORE, CHRIS | Democratic | Senate, CA | Challenger or open seat | FEC |
| ASTORGA, ALEX JOHN | None | Senate, CA | Challenger or open seat | FEC |
| BRADLEY, JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| DOROTHY, DOMINICK J | Democratic | Senate, CA | Challenger or open seat | FEC |
| EARLY, ERIC | Republican | Senate, CA | Challenger or open seat | FEC |
| FARMOS, JACOB | Democratic | Senate, CA | Challenger or open seat | FEC |
| FENNELL, JEREMY | Democratic | Senate, CA | Challenger or open seat | FEC |
| FULKERSON, HEATH VINCENT | Republican | Senate, CA | Challenger or open seat | FEC |
| GARVEY, STEVE | Republican | Senate, CA | Challenger or open seat | FEC |
| GARY-PANDOL, DENICE LYN | Republican | Senate, CA | Challenger or open seat | FEC |
| GILANI, SEPI | Democratic | Senate, CA | Challenger or open seat | FEC |
| HALL, MYRON LOUIS | Republican | Senate, CA | Challenger or open seat | FEC |
| HENG, ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| INAM, ZAFAR | Democratic | Senate, CA | Challenger or open seat | FEC |
| JUAREZ, GABRIEL | Democratic | Senate, CA | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTR | OTH | Senate, CA | Challenger or open seat | FEC |
| LAWLER, ROXANNE ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | Senate, CA | Challenger or open seat | FEC |
| MCGURR, MATTHEW E. | Democratic | Senate, CA | Challenger or open seat | FEC |
| MUNOZ, EDGAR F | Independent | Senate, CA | Challenger or open seat | FEC |
| O'NEIL, RUSTEN | Independent | Senate, CA | Challenger or open seat | FEC |
| PADILLA, ALEX | Democratic | Senate, CA | Incumbent | FEC |
| PORTER, KATHERINE | Democratic | Senate, CA | Challenger or open seat | FEC |
| POUND, PERRY | Democratic | Senate, CA | Challenger or open seat | FEC |
| PULLIAM, ALANDER | Independent | Senate, CA | Challenger or open seat | FEC |
| RAB, AEJAZ ( RAJI ) | Democratic | Senate, CA | Challenger or open seat | FEC |
| RAM, MELANIE | Democratic | Senate, CA | Challenger or open seat | FEC |
| RASHID, MUHAMMAD M | ACE | Senate, CA | Challenger or open seat | FEC |
| REISS, JONATHAN | Republican | Senate, CA | Challenger or open seat | FEC |
| RESENDEZ, JESSICA SERENE | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROSE, JOHN | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROSE, JOHN DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | Senate, CA | Incumbent | FEC |
| SCHRADER, STEPHEN JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| SIGMON, MICHAEL R | NPP | Senate, CA | Challenger or open seat | FEC |
| SMITH SLATER, QUINCI RENEE | Democratic | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | Senate, CA | Challenger or open seat | FEC |
| THELEN, DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| URSICH, TIMOTHY J | Democratic | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, CORDIE LEE | Republican | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| MCCLENDON, ALICIA | Democratic | House, CA | Challenger or open seat | FEC |
| BENNINGTON, SARAH MARIE | Republican | House, CA district 1 | Challenger or open seat | FEC |
| BROCK, JAMES M | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| CASSIDY, BRIAN | Republican | House, CA district 1 | Challenger or open seat | FEC |
| CASTANEDALEAL, WENDY | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| DENNEY, AUDREY | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| DOROTHY, DOMINICK | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| GALLAGHER, JAMES | Republican | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| LAVIN, JEFFREY R | Libertarian | House, CA district 1 | Challenger or open seat | FEC |
| MCGUIRE, MIKE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MEEKS MILOJEVICH, JANAI | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MINNER, RICHARD T | Independent | House, CA district 1 | Challenger or open seat | FEC |
| RAMOS, JONATHON ANGEL | FED | House, CA district 1 | Challenger or open seat | FEC |
| RHODEN, ERICA | Unknown | House, CA district 1 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| SALEGUI, JAMES | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | House, CA district 1 | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | House, CA district 1 | Challenger or open seat | FEC |
| STEWART, CASEY | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WARRENS, JOANNA | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WILSON, KYLE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| YEE, ROSE PENELOPE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| BURGESS, GREGORY WARREN | None | House, CA district 2 | Challenger or open seat | FEC |
| COULOMBE, CHRIS | Republican | House, CA district 2 | Challenger or open seat | FEC |
| EISELE, KEVIN | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| GEIST, TIMOTHY DAVID | Republican | House, CA district 2 | Challenger or open seat | FEC |
| GIBBS JENSEN, TIEF | Republican | House, CA district 2 | Challenger or open seat | FEC |
| HAHN, NICOLETTE G. | NPA | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| KANGAS, JOLIAN | NOP | House, CA district 2 | Challenger or open seat | FEC |
| LITTAU, ROBIN | Republican | House, CA district 2 | Challenger or open seat | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| POLUDNIAK, CODY NIKOLAS | None | House, CA district 2 | Challenger or open seat | FEC |
| SAULSBURY, PAUL W | Republican | House, CA district 2 | Challenger or open seat | FEC |
| SMART, COLBY | None | House, CA district 2 | Challenger or open seat | FEC |
| VALLES, ANGELITA | Republican | House, CA district 2 | Challenger or open seat | FEC |
| YEE, ROSE PENELOPE LAGOC | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| BENNETT, CHRISTOPHER JERMAN | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| BISH, CHRISTINE S | Republican | House, CA district 3 | Challenger or open seat | FEC |
| CERVANTES, LYNDON | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| HALL, HEIDI | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| HUHN, DOUGLAS JOSEPH JR | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| MORSE, JESSICA | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| SHABAZZ, JALEEL RASHID | OTH | House, CA district 3 | Challenger or open seat | FEC |
| TUCKER, ROBB | Republican | House, CA district 3 | Challenger or open seat | FEC |
| BROWN, SHARON | Republican | House, CA district 4 | Challenger or open seat | FEC |
| FRAME, SEAN COLIN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| FULKERSON, HEATH VINCENT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| GHUSAR, MANDY | Republican | House, CA district 4 | Challenger or open seat | FEC |
| JONES, ERIC | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| JONES, JIMIH L | Republican | House, CA district 4 | Challenger or open seat | FEC |
| KENNEDY, BRYNNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| MACKENZIE, LAURIE JOHN | Republican | House, CA district 4 | Challenger or open seat | FEC |
| MERRELL, TREVOR | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| MUNN, JOHN | Republican | House, CA district 4 | Challenger or open seat | FEC |
| RIEHLE, RAYMOND | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| TYLER, JOHN WESLEY | Independent | House, CA district 4 | Challenger or open seat | FEC |
| URIBE, CHARLES JR. | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| DANBOM, PAUL | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| KASSEL, JASON SETH | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| MAIN, DAVID NATHAN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MASUDA, MICHAEL | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| SIGALA, ANGELINA | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| SILLS, KATELYN ANNE | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| WELAND, JASON PATRICK | Republican | House, CA district 5 | Challenger or open seat | FEC |
| WOZNIAK, STEVE | NOP | House, CA district 5 | Challenger or open seat | FEC |
| BABB TOMLINSON, LAUREN | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| BARAJAS, ADAN JOSEPH | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| DELUZ, CRAIG | Republican | House, CA district 6 | Challenger or open seat | FEC |
| GUERRERO, MARTHA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| HO, THIEN | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, DELMA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| KILEY, KEVIN | OTH | House, CA district 6 | Incumbent | FEC |
| PAN, RICHARD | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| PRING, KINDRA M | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| RICHARDSON, CHRIS | Green | House, CA district 6 | Challenger or open seat | FEC |
| STANSFIELD, MICHAEL | Republican | House, CA district 6 | Challenger or open seat | FEC |
| VANDENBERG, TYLER ISAAC | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| FULKERSON, HEATH V | Republican | House, CA district 7 | Challenger or open seat | FEC |
| LEE, ERICA | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| MANDEL, DAVID | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| MING, KATHRYN S | Republican | House, CA district 7 | Challenger or open seat | FEC |
| MORIN, ROBERT | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| NAZHAT, ENAYAT | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| RICHARDSON, ROBERT CHRISTIAN | Green | House, CA district 7 | Challenger or open seat | FEC |
| VANG, MAI | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| WOODEN, ZACHARIAH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| CARJUZAA, NICOLAS | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| GOMEZ, BLANCA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| LAMBA, HARINDER SINGH | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RECILE, RUDY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| ROWDEN, AARON B | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| STAAT, JEREMY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| HARDER, JOSH | Democratic | House, CA district 9 | Incumbent | FEC |
| JAFRI, KHALID | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCBRIDE, JOHN | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| SHOEMAKER, JAMES H | Republican | House, CA district 9 | Challenger or open seat | FEC |
| SINGH, PARMINDER | Republican | House, CA district 9 | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | House, CA district 9 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| ELSHERBINI, MOHAMED S | NPA | House, CA district 10 | Challenger or open seat | FEC |
| FRESE, JEFFREY | Republican | House, CA district 10 | Challenger or open seat | FEC |
| GRIFFITHS, ANGELA | Republican | House, CA district 10 | Challenger or open seat | FEC |
| HAMILTON, JOSHUA | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| KERR, MICHAEL | Green | House, CA district 10 | Challenger or open seat | FEC |
| MAISLER, MITCHELL DAVID | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| NGUYEN, CALVIN | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| PICCININI, KATHERINE | Republican | House, CA district 10 | Challenger or open seat | FEC |
| SWEENEY, JOSEPH J | Independent | House, CA district 10 | Challenger or open seat | FEC |
| BETTLES, COLE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| BLUE, ELIJAH LEWIS | Libertarian | House, CA district 11 | Challenger or open seat | FEC |
| BUTTAR, SHAHID | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| CHAKRABARTI, SAIKAT | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| CHAN, CONNIE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| DEER, NATHAN | None | House, CA district 11 | Challenger or open seat | FEC |
| GANEZER, DAVID L | Republican | House, CA district 11 | Challenger or open seat | FEC |
| HAMID, OMED | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| HELTON, DARREN WAYNE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| HURABIELL, MARIE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| JACKSON, CHERELLE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| LOU, BRUCE C | Republican | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| SHARMA, NISHA | Republican | House, CA district 11 | Challenger or open seat | FEC |
| VON KRIEG, BIANCA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| WHEELER, DANIEL | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| WIENER, SCOTT | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| WONG, TIMOTHY | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| XIONG, JINGCHAO | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| XIONG, JINGCHAO | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| XIONG, JINGCHAO | Republican | House, CA district 11 | Challenger or open seat | FEC |
| CURRY, ERIC | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DAYSOG, TONY | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| FULKERSON, HEATH VINCENT | Republican | House, CA district 12 | Challenger or open seat | FEC |
| INGRAM, DENARD | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| JOYCE, JAMIE | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| SIMON, LATEEFAH | Democratic | House, CA district 12 | Incumbent | FEC |
| SLAUSON, STEPHEN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | House, CA district 12 | Challenger or open seat | FEC |
| TODD, ANDRE | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| TRAN, JENNIFER | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| WOODY, JASON J | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| ARBALLO, PHIL | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| DUARTE, JOHN | Republican | House, CA district 13 | Incumbent | FEC |
| ESCOBEDO, ALBERTO | None | House, CA district 13 | Challenger or open seat | FEC |
| GARIBAY RODRIGUEZ, DANIEL | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| GRAY, ADAM C. | Democratic | House, CA district 13 | Incumbent | FEC |
| KRUTTIVENTI, VIN | Republican | House, CA district 13 | Challenger or open seat | FEC |
| LINCOLN, KEVIN J II | Republican | House, CA district 13 | Challenger or open seat | FEC |
| LOPEZ, JAVIER B | Republican | House, CA district 13 | Challenger or open seat | FEC |
| MARTINEZ, DIEGO J | Republican | House, CA district 13 | Challenger or open seat | FEC |
| ROSARIO-SIGALA, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| SIGALA, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| SIGALA-ROSARIO, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| SOLOMON, GAVIN | W | House, CA district 13 | Challenger or open seat | FEC |
| CHENAULT, SUZANNE | NPA | House, CA district 14 | Challenger or open seat | FEC |
| CORDES, ALISHA LOKELANI | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| ELAM, CARIN | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| GRCAR, JOSEPH DOC | Republican | House, CA district 14 | Challenger or open seat | FEC |
| HAYDEN, ALISON | Republican | House, CA district 14 | Challenger or open seat | FEC |
| HERNANDEZ, MELISSA | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| HUANG, WENDY FIONA | Republican | House, CA district 14 | Challenger or open seat | FEC |
| ISRANI, RAKHI | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| MALDONADO, DENA MARIE | Republican | House, CA district 14 | Challenger or open seat | FEC |
| ORTEGA, MATT | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| QADIR, ABRAR | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| REYNOSO, LUIS | Republican | House, CA district 14 | Challenger or open seat | FEC |
| RIDENOUR, SHERIENE | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| SINGH, MAJOR | NPA | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| WAHAB, AISHA | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| WIECKOWSKI, BOB | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| ZEVALLOS, VICTOR | NPA | House, CA district 14 | Challenger or open seat | FEC |
| DANG, ANTHONY VAN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| GARRITY, JAMES | UN | House, CA district 15 | Challenger or open seat | FEC |
| HOELTER, CHARLES | Republican | House, CA district 15 | Challenger or open seat | FEC |
| KRAMER, ANNA | Republican | House, CA district 15 | Challenger or open seat | FEC |
| KUMAR, MANTOSH | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| MULLIN, KEVIN | Democratic | House, CA district 15 | Incumbent | FEC |
| TETRUD, BRIAN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| DIXON, PETER | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| JOHNSON, KEVIN | Republican | House, CA district 16 | Challenger or open seat | FEC |
| KUMAR, RISHI | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| LICCARDO, SAM T. | Democratic | House, CA district 16 | Incumbent | FEC |
| LOW, EVAN | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| MOSTAFA, AHMED | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| OHTAKI, PETER I | Republican | House, CA district 16 | Challenger or open seat | FEC |
| RADING, AJWANG | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SOULE, PETER SUNDIN | Republican | House, CA district 16 | Challenger or open seat | FEC |
| STEIN, JOTHAM | NPA | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| AGARWAL, ETHAN | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| CHEN, ANITA S | Republican | House, CA district 17 | Challenger or open seat | FEC |
| DEHN, JOSEPH W III | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FINAN, NICHOLAS JAMES | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KATZ, MIKE | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| PARK, JASON ISAAC | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| PHAN, HA T | Republican | House, CA district 17 | Challenger or open seat | FEC |
| TANDON, RITESH | Republican | House, CA district 17 | Challenger or open seat | FEC |
| ACEVEDO-ARREGUIN, LUIS ANTONIO | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| DEMERS, CHRISTOPHER | NPA | House, CA district 18 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| GUERRERO, RYAN R | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| HERNANDEZ, PETER | Republican | House, CA district 18 | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTRELVIA | OTH | House, CA district 18 | Challenger or open seat | FEC |
| KIFLE, LUELE | 18 | House, CA district 18 | Challenger or open seat | FEC |
| KORTAM, ZAKARIA MOHAMED | Republican | House, CA district 18 | Challenger or open seat | FEC |
| LEWIS, SHANE | Republican | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| NIJMEH, CHARLENE CONCEPCION | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| ACEVEDO-CABRERA, ANA LUZ | Independent | House, CA district 19 | Challenger or open seat | FEC |
| ANDERSON, JASON | Republican | House, CA district 19 | Challenger or open seat | FEC |
| DOUGHERTY, SEAN JACOB | Green | House, CA district 19 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| GAFARI, TUKA | Republican | House, CA district 19 | Challenger or open seat | FEC |
| JAMES, HANNAH | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| VERBICA, PETER COE | Republican | House, CA district 19 | Challenger or open seat | FEC |
| BOUDREAUX, MICHAEL | Republican | House, CA district 20 | Challenger or open seat | FEC |
| BURROWS, JOHNATHON | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| CHEN, MAY | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| DEWELL, BEN | Independent | House, CA district 20 | Challenger or open seat | FEC |
| FONG, VINCE | Republican | House, CA district 20 | Incumbent | FEC |
| FOX, JEREMY CHARLES | None | House, CA district 20 | Challenger or open seat | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| KULIKOFF, KELLY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| PIATT, MATTHEW | Republican | House, CA district 20 | Challenger or open seat | FEC |
| ROBB, PATRICK | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| ROPER, CAROL KRISTINA | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| VAN SCOTTER, SANDRA | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| WOOD, MARISA | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| GARCIA, ERIC | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| HUBBARD, LOURIN | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| HUBBARD, LOURIN | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| KIRKLAND, KYLE | Republican | House, CA district 21 | Challenger or open seat | FEC |
| KRUSE, LANCE ALVIN | None | House, CA district 21 | Challenger or open seat | FEC |
| MAHER, MICHAEL A | Republican | House, CA district 21 | Challenger or open seat | FEC |
| RIOS, LORENZO | Republican | House, CA district 21 | Challenger or open seat | FEC |
| BAINS, JASMEET | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| HENG, ELIZABETH | Republican | House, CA district 22 | Challenger or open seat | FEC |
| HUBBARD, LOURIN | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| MATHYS, CHRIS | Republican | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| SALAS, RUDY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| VILLEGAS, RANDY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| ALONZO, EDWIN | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ARCEO, MIGUEL ANGEL | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| CHAKALIAN, PAUL | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| CLAIBORNE, ALEXIS L | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| GILL, LOUIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| HODGE, TESSA LYNN | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| JONES, DAVID ALLEN | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MARSHALL, DEREK | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MATTHEWS, KAREN | Independent | House, CA district 23 | Challenger or open seat | FEC |
| OBERNOLTE, JAY | Republican | House, CA district 23 | Incumbent | FEC |
| OWENS, ELI C. | Independent | House, CA district 23 | Challenger or open seat | FEC |
| WALLIS, CHARLES PATRICK | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| BACON, SARAH | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| COLE, THOMAS | Republican | House, CA district 24 | Challenger or open seat | FEC |
| PASQUARELLA, HELENA | OTH | House, CA district 24 | Challenger or open seat | FEC |
| SMITH, ROBERT BOB J | Republican | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| WESLANDER QUAID, MICHELE | NPA | House, CA district 24 | Challenger or open seat | FEC |
| CHAPA, MIGUEL | Republican | House, CA district 25 | Challenger or open seat | FEC |
| HUFFMAN, RONALD R | GOP | House, CA district 25 | Challenger or open seat | FEC |
| KESSELMARK, JOHN KENNEDY II | Republican | House, CA district 25 | Challenger or open seat | FEC |
| LUEVANOS, RUTH | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| MALES, JOE | Republican | House, CA district 25 | Challenger or open seat | FEC |
| ORTIZ, OSCAR | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| REISS, JONATHAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| THAKUR, ALBERT 'BURT' | Republican | House, CA district 25 | Challenger or open seat | FEC |
| TRUMAN, CECI | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UYGUR, CENK | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALLADARES, SUZETTE MARTINEZ | Republican | House, CA district 25 | Challenger or open seat | FEC |
| WEEKS, IAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| ANSTEAD, CHRIS | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| BOYER, BRUCE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| DEVGAN-KACKER, SONIA | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| ESPINOSA, CHRIS | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| GALLUCCI, SAMUEL | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GOLDEN, CRYSTAL | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GOLDEN, CRYSTAL MARIE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| HERNANDEZ, LIAM ANDRES | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| IRWIN, JACQUI V | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| KOSLOW, MICHAEL S | Republican | House, CA district 26 | Challenger or open seat | FEC |
| LANGFORD, KYLE ALEXANDER | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| MAROTTA, JOSEPH | Republican | House, CA district 26 | Challenger or open seat | FEC |
| MILLER, DANIEL | Republican | House, CA district 26 | Challenger or open seat | FEC |
| MORENO- PEREZ, KATRINA MARIELLE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| ROHRBACH, KYLE | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| SCOTT, WILLIAM | Republican | House, CA district 26 | Challenger or open seat | FEC |
| WAGONER, JONATHAN | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GARCIA, MICHAEL | Republican | House, CA district 27 | Incumbent | FEC |
| GIBBS, JASON | Republican | House, CA district 27 | Challenger or open seat | FEC |
| NEIDHART, DAVID | Republican | House, CA district 27 | Challenger or open seat | FEC |
| NORWOOD, CALEB GABRIEL | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| RAMOS, ROBERTO | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| WHITESIDES, GEORGE | Democratic | House, CA district 27 | Incumbent | FEC |
| WITT, BRYAN | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| DEPAOLIS, GIULIANO GIOVANNI | NPA | House, CA district 28 | Challenger or open seat | FEC |
| GONZALEZ, ROBERT THOMAS | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| TUCKER, MICHAEL WYATT II | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| VERLATO, APRIL | Republican | House, CA district 28 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| CARRANZA, MARGARITA MARIA | Republican | House, CA district 29 | Challenger or open seat | FEC |
| DUENAS, ANGELICA MARIA | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| RIVAS, LUZ | Democratic | House, CA district 29 | Incumbent | FEC |
| SPARROW, STEVEN | Republican | House, CA district 29 | Challenger or open seat | FEC |
| BALEKIAN, ALEX ARTO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| CASTELLANOS, MIKE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| DUNWOODY, STEPHEN ANDRAE' | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| FEITOSA, DENNIS F. | Republican | House, CA district 30 | Challenger or open seat | FEC |
| FRIEDMAN, LAURA | Democratic | House, CA district 30 | Incumbent | FEC |
| HERMAN, LESTER | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| HUCKABEE, MICHAEL WAYNE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| JOHN ARMENIAN | NPA | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| LAVA, JOEL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| MELVOIN, NICK | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| MEYERS, SCOTT ALAN | Republican | House, CA district 30 | Challenger or open seat | FEC |
| NAJERA, COURTNEY SIMONE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| REEVES, DARRELL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| SAVAGE, BEN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| STARZINSKI, ALAN MICHAEL JR | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| TENNYSON, CAMERON | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| ARCHULETA, BOB | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHING, ERIC J | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CISNEROS, GILBERT | Democratic | House, CA district 31 | Incumbent | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GUTIERREZ, REX DALE ALEXANDER | Republican | House, CA district 31 | Challenger or open seat | FEC |
| LEVI, ERSKINE LINCOLN JR | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MARTINEZ, DANIEL JOSE BOCIC ESQ. | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| RUBIO, SUSAN | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| VAZQUES, RICARDO | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| WEEMS, EUGENE | W | House, CA district 31 | Challenger or open seat | FEC |
| ABBITT, DAVE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| AHUJA, CHRISTOPHER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| BENAMI, DORY | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| BROWN, DAVID | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| GONZALES, EMANUEL LAWRENCE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| ISHII, ORISSA | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KAREM, WYATT | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LEVINE, JAKE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LIN, MARENA | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| PHILLIPS, MIA MICHELLE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAKOV, JAKE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RHODES, AARIKA SAMONE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SAUTTER, JOSH | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SMITH, DOUGLAS | NOP | House, CA district 32 | Challenger or open seat | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| THOMPSON, LARRY | Republican | House, CA district 32 | Challenger or open seat | FEC |
| WILDING, ANNA | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| CHRISTODOULOU, ANTONIS PANAGIOTIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| HERMAN, THOMAS | Republican | House, CA district 33 | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| RICHTER, ERNEST | Republican | House, CA district 33 | Challenger or open seat | FEC |
| VARGAS, STEPHANIE M. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WEEMS, EUGENE LAMONTE | Republican | House, CA district 33 | Challenger or open seat | FEC |
| AHN, ROBERT LEE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| COLIN, LOREN | NOP | House, CA district 34 | Challenger or open seat | FEC |
| DIXON, ARTHUR | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| FERRELL, DAVID MATTHEW | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GOMEZ, JIMMY | Democratic | House, CA district 34 | Incumbent | FEC |
| GONZALES-TORRES, ANGELA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| LEE, CALVIN | Republican | House, CA district 34 | Challenger or open seat | FEC |
| LUCERO, ROB | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| NGUYEN, VIVIAN | Independent | House, CA district 34 | Challenger or open seat | FEC |
| REVELES, AARON | PFP | House, CA district 34 | Challenger or open seat | FEC |
| CARGILE, MIKE | Republican | House, CA district 35 | Challenger or open seat | FEC |
| HORVATH, MICHAEL | Republican | House, CA district 35 | Challenger or open seat | FEC |
| LANE, WH | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| SUTHAR, VIJAL | Republican | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| BRIGNANO, HOUSTON | Republican | House, CA district 36 | Challenger or open seat | FEC |
| COLLINS, JOE E III | Republican | House, CA district 36 | Challenger or open seat | FEC |
| HAKAMI, ARIANA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| KNUDTSON, RUSTIN | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| PERKINS, IVAN | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| RAGGE ANDERSON, CLAIRE | NON | House, CA district 36 | Challenger or open seat | FEC |
| SHAMMA, MARIANNE | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| TOOMIM, LEAH MELISSA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| CARMICHAEL, ADAM J | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| DUCKETT, RYAN CHAD CASEY CMR. ESQ. | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| FEDALIZO, BALTAZAR | Republican | House, CA district 37 | Challenger or open seat | FEC |
| FENNER, ELIZABETH ANNE | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| HILL, STEVE | NPA | House, CA district 37 | Challenger or open seat | FEC |
| KAMLAGER-DOVE, SYDNEY | Democratic | House, CA district 37 | Incumbent | FEC |
| LEE, DANIEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| LOMBARDO, TODD | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| MOTA, SAMANTHA | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| PARKER, JOHN THOMPSON | OTH | House, CA district 37 | Challenger or open seat | FEC |
| REY, JUAN | NOP | House, CA district 37 | Challenger or open seat | FEC |
| SHURE, MICHAEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| SILVERA, AARON ALBERT | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| ADAMS-FALCONER, THOMAS MICHAEL JR. | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| CASAS, PEDRO ANTONIO | Republican | House, CA district 38 | Challenger or open seat | FEC |
| LUTZ, ERIK | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| SANCHEZ, MONICA | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| SOLIS, HILDA | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| MANOS, STEVE | Republican | House, CA district 39 | Challenger or open seat | FEC |
| SERPA, DAVID | Republican | House, CA district 39 | Challenger or open seat | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| AHMED, CHRISTIAN TYLER | Independent | House, CA district 40 | Challenger or open seat | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| GAGNIER, CHRISTINA | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| HOFFMAN, FRANCIS X "FRANK" | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KEISSIEH, CLAUDE MANUEL | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KERR, JOSEPH | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KERR, JOSEPH | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KIM, YOUNG | Republican | House, CA district 40 | Incumbent | FEC |
| LINH, NINA | Independent | House, CA district 40 | Challenger or open seat | FEC |
| MEADE, PERRY | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| PAYAD, MARICAR | AIP | House, CA district 40 | Challenger or open seat | FEC |
| PETERSON, ERIC | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| RAMIREZ, LISA D | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| SWIFT, PAULA WILLIAMS | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| TATE, TIFFANIE | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| VARET, ESTHER KIM | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| ALEMAN, KATHERINE | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| ALVAREZ, SIMON MARK | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| BYORS, JASON | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| CLEMMONS, MITCHELL | Republican | House, CA district 41 | Challenger or open seat | FEC |
| CLEMMONS, MITCHELL LEE | Republican | House, CA district 41 | Challenger or open seat | FEC |
| DE LA TORRE, HECTOR | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| KARSON, DAVID | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| LAWTON, GALE DUANE | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| MYERS, TIM | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| NEVENIC, ANNA | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| PATEL, SHAAF | Libertarian | House, CA district 41 | Challenger or open seat | FEC |
| ROLLINS, WILL | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WIEBELHAUS, CODY MICHAEL | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WILLIAMS, SHONIQUE | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| BELTRAN, JOAQUIN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| BELTRAN, JOAQUIN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| BLOM, NOAH | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BURLEY, BRIAN J | Republican | House, CA district 42 | Challenger or open seat | FEC |
| GARCIA, ROBERT | Democratic | House, CA district 42 | Incumbent | FEC |
| PHAM, LONG | Republican | House, CA district 42 | Challenger or open seat | FEC |
| PHAM, LONG | Republican | House, CA district 42 | Challenger or open seat | FEC |
| PHAM, LONG KIM | Republican | House, CA district 42 | Challenger or open seat | FEC |
| SUMMERVILLE, WILLIAM M. | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| TUREK, PHILIP | Republican | House, CA district 42 | Challenger or open seat | FEC |
| VERMEULEN, LARISA | None | House, CA district 42 | Challenger or open seat | FEC |
| CRISTO, EDEN | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| GEIGER, CRAIG | Republican | House, CA district 43 | Challenger or open seat | FEC |
| JAIN, ANISH | Republican | House, CA district 43 | Challenger or open seat | FEC |
| MORALES, CRISTIAN | Republican | House, CA district 43 | Challenger or open seat | FEC |
| RAHMAN, MYLA | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| SEDLIK, DAVID | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| SIMES, REGINA RENEE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| TRUMAN, CHRISTOPHER | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| WIGGINS, CHRISTOPHER BLAKE | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| WILLIAMS, STEVE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| ANGEL, GENEVIEVE | Republican | House, CA district 44 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| GROH, ROGER | Republican | House, CA district 44 | Challenger or open seat | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| CHEN, JAY | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FORDE, BRIAN | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| HUNT, CHEYENNE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| KY-PHONG VO, THOMAS | Republican | House, CA district 45 | Challenger or open seat | FEC |
| LEONARD, MARK ANDREW | Republican | House, CA district 45 | Challenger or open seat | FEC |
| NGUYEN, CHI CHARLIE | Republican | House, CA district 45 | Challenger or open seat | FEC |
| NGUYEN, KIM | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PAI, ADITYA | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PHAN WEST, AMY | Republican | House, CA district 45 | Challenger or open seat | FEC |
| STEEL, MICHELLE | Republican | House, CA district 45 | Incumbent | FEC |
| TRAN, DEREK | Democratic | House, CA district 45 | Incumbent | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| VO, CHUONG | Republican | House, CA district 45 | Challenger or open seat | FEC |
| BAHENA, FRANCISCO | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| GONZALES, CHRISTOPHER | Republican | House, CA district 46 | Challenger or open seat | FEC |
| MENDEZ, CHRISTIAN | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| ORTEGA, MICHAEL | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| PAN, DAVID | Republican | House, CA district 46 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BROUGH, BILL | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CLIFFORD, DAVID | Republican | House, CA district 47 | Challenger or open seat | FEC |
| GOFFE, ANDREW LEE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| GONZALES, CHRISTOPHER J | Republican | House, CA district 47 | Challenger or open seat | FEC |
| HASHEMIEH, JULIA | Republican | House, CA district 47 | Challenger or open seat | FEC |
| JONES, DOM | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| LAM, RYAN SAGE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| LE ROUX, JENNY RAE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| MAXSENTI, MICHAEL | Republican | House, CA district 47 | Challenger or open seat | FEC |
| MIN, DAVE | Democratic | House, CA district 47 | Incumbent | FEC |
| MIRANDA, HUNTER GARCIA | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| MOUA, SOU | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PHAN WEST, AMY | Republican | House, CA district 47 | Challenger or open seat | FEC |
| REID, DERRICK MICHAEL | Libertarian | House, CA district 47 | Challenger or open seat | FEC |
| ROBERTS, BOYD | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| TROUTMAN, ERIC J | Independent | House, CA district 47 | Challenger or open seat | FEC |
| UKROPINA, MAX | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WEISS, JOANNA | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| BUCY, MICHAEL WILLIAM | Independent | House, CA district 48 | Challenger or open seat | FEC |
| CAMPA-NAJJAR, AMMAR | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| CHAVEZ, ABEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| CLEMONS, STEPHEN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| CONTRERAS, CORINNA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| DAVIS, NICHOLAS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| DAVIS, NICHOLAS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| DESMOND, JIM | Republican | House, CA district 48 | Challenger or open seat | FEC |
| DIXIT, ANUJ | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| GAUTEREAUX, CORY | Republican | House, CA district 48 | Challenger or open seat | FEC |
| HOULAHAN, STEPHEN WILLIAM | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| IANNARINO, MARC | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| KOTICK, MICHAEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| MORA, ALBERT JAMES | UN | House, CA district 48 | Challenger or open seat | FEC |
| MORRISON, CURTIS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| NASH, BRIAN L | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| OATMAN, LAURA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| PORTER, FERGUSON | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| REYNA, LUIS FERNANDO | NPA | House, CA district 48 | Challenger or open seat | FEC |
| RIKER, BRANDON | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHAEFER, MIKE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHULTZ, JOHN THOMAS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SHANAHAN, WHITNEY | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SHAW, ERIC | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| TILL, SUZANNE MARIE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| VON WILPERT, MARNI | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ARELLANO, JULIAN | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| BARTLETT, LISA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| GUNDERSON, MATT | Republican | House, CA district 49 | Challenger or open seat | FEC |
| KURDIAN, ARMEN | Republican | House, CA district 49 | Challenger or open seat | FEC |
| LEVIN, MIKE | Democratic | House, CA district 49 | Incumbent | FEC |
| MARYOTT, BRIAN L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| MONROE, KATE M | Republican | House, CA district 49 | Challenger or open seat | FEC |
| PARKER, STAR L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| STERN, ELI | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ARNOUS, HATIM | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| BILASH, TIMOTHY DANIEL M.D. | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| COHEN, STEPHEN JAY | Republican | House, CA district 50 | Challenger or open seat | FEC |
| HUNTINGTON, ADAM | Republican | House, CA district 50 | Challenger or open seat | FEC |
| JAHN, LUCINDA | NOP | House, CA district 50 | Challenger or open seat | FEC |
| JAHN, LUCINDA KWH | NOP | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| MITRA, AISHWARYA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| MOSS, SOLOMON | Republican | House, CA district 50 | Challenger or open seat | FEC |
| PEREZ, ERNESTO NOEL | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| RYANS, JERLILIA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| SHEA, JOE | Libertarian | House, CA district 50 | Challenger or open seat | FEC |
| WILSKE, LARRY A | Republican | House, CA district 50 | Challenger or open seat | FEC |
| BUCY, MICHAEL | IAP | House, CA district 51 | Challenger or open seat | FEC |
| BUCY, MICHAEL | IAP | House, CA district 51 | Challenger or open seat | FEC |
| CABRERA, RICARDO | Republican | House, CA district 51 | Challenger or open seat | FEC |
| CAPLAN, STAN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| CAPLAN, STAN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| CAPLAN, STAN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| JACOBS, SARA | Democratic | House, CA district 51 | Incumbent | FEC |
| RODRIGUEZ, SAUL ALEJANDRO | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| SHIOURA, HILAIRE FUJI | OTH | House, CA district 51 | Challenger or open seat | FEC |
| WELLS, BILL D. | Republican | House, CA district 51 | Challenger or open seat | FEC |
| WILLIAMS, JOHN-SAMUEL ETHERIDGE | Republican | House, CA district 51 | Challenger or open seat | FEC |
| BELLE, JEFFERY | Republican | House, CA district 52 | Challenger or open seat | FEC |
| LEE, JUSTIN | Republican | House, CA district 52 | Challenger or open seat | FEC |
| MOTIWALLA, FRANCES YASMEEN | Democratic | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| FOUNTAIN, JOSEPH | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| KUTNER, ERIC ROGER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
2023–2024 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| AGBEDE, AKINYEMI | Democratic | Senate, CA | Challenger or open seat | FEC |
| BOBBITT, DANA | Independent | Senate, CA | Challenger or open seat | FEC |
| DILGER, MICHAEL JOSEPH | W | Senate, CA | Challenger or open seat | FEC |
| DOWELL, JOHN | W | Senate, CA | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | Senate, CA | Challenger or open seat | FEC |
| FERREIRA, FRANK | Independent | Senate, CA | Challenger or open seat | FEC |
| GARZA, LAURA | NOP | Senate, CA | Challenger or open seat | FEC |
| GRUNDMANN, DON J. | NOP | Senate, CA | Challenger or open seat | FEC |
| INGRAM, DENARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| JONES, FORREST | OTH | Senate, CA | Challenger or open seat | FEC |
| KUMAR, HARMESH | Democratic | Senate, CA | Challenger or open seat | FEC |
| LE, DIEN | Republican | Senate, CA | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | Senate, CA | Challenger or open seat | FEC |
| LIGHTFOOT, GAIL K | Libertarian | Senate, CA | Challenger or open seat | FEC |
| MACAULEY, JAMES "JIM" | Republican | Senate, CA | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| SATARI, ABDUL M | Independent | Senate, CA | Challenger or open seat | FEC |
| SINGH, MAJOR | NOP | Senate, CA | Challenger or open seat | FEC |
| THEODORE, CHRIS | Democratic | Senate, CA | Challenger or open seat | FEC |
| VEPRAUSKAS, MARTIN | Republican | Senate, CA | Challenger or open seat | FEC |
| AINSWORTH, BRIAN KEVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| ANDERSON, PAUL KEVIN | Green | Senate, CA | Challenger or open seat | FEC |
| ASTORGA, ALEX JOHN | None | Senate, CA | Challenger or open seat | FEC |
| BASSETT, SHARLETA | Republican | Senate, CA | Challenger or open seat | FEC |
| BERDUGO, EDUARDO | W | Senate, CA | Challenger or open seat | FEC |
| BOCANEGRA, JOSHUA | Democratic | Senate, CA | Challenger or open seat | FEC |
| BRADLEY, JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| CONN, JAMES HENRY | Green | Senate, CA | Challenger or open seat | FEC |
| DOROTHY, DOMINICK J | Democratic | Senate, CA | Challenger or open seat | FEC |
| EARLY, ERIC | Republican | Senate, CA | Challenger or open seat | FEC |
| FARMOS, JACOB | Democratic | Senate, CA | Challenger or open seat | FEC |
| FEINSTEIN, DIANNE | Democratic | Senate, CA | Incumbent | FEC |
| FENNELL, JEREMY | Democratic | Senate, CA | Challenger or open seat | FEC |
| FOXINGTON, DIANE | Democratic | Senate, CA | Challenger or open seat | FEC |
| FRANKLIN, CARSON HENRY JR | Democratic | Senate, CA | Challenger or open seat | FEC |
| GARCIA, JOSHUA | Republican | Senate, CA | Challenger or open seat | FEC |
| GARVEY, STEVE | Republican | Senate, CA | Challenger or open seat | FEC |
| GARY-PANDOL, DENICE LYN | Republican | Senate, CA | Challenger or open seat | FEC |
| GILANI, SEPI | Democratic | Senate, CA | Challenger or open seat | FEC |
| GIRARD, YVONNE RENEE | Republican | Senate, CA | Challenger or open seat | FEC |
| HALL, MYRON LOUIS | Republican | Senate, CA | Challenger or open seat | FEC |
| HAND, JEHU THOMAS DE GEROLD | Republican | Senate, CA | Challenger or open seat | FEC |
| HARTSON, ALISON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HENG, ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| INAM, ZAFAR | Democratic | Senate, CA | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTR | OTH | Senate, CA | Challenger or open seat | FEC |
| KORTAM, ZAKARIA MOHAMED | Republican | Senate, CA | Challenger or open seat | FEC |
| LAWLER, ROXANNE ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | Senate, CA | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | Senate, CA | Challenger or open seat | FEC |
| LUCERO, ROBERT GEORGE JR | Republican | Senate, CA | Challenger or open seat | FEC |
| MALEH, KENDA | Unknown | Senate, CA | Challenger or open seat | FEC |
| MANDELA, BARACK OBAMA | Republican | Senate, CA | Challenger or open seat | FEC |
| MARTINEZ, RENEE SIMENONA | None | Senate, CA | Challenger or open seat | FEC |
| MARTINEZ, RENEE SIMENONA | None | Senate, CA | Challenger or open seat | FEC |
| MCGURR, MATTHEW E. | Democratic | Senate, CA | Challenger or open seat | FEC |
| MEHTA, URVISHKUMAR | FED | Senate, CA | Challenger or open seat | FEC |
| MEUSER, MARK | Republican | Senate, CA | Challenger or open seat | FEC |
| MONTENEGRO, ROMMELL | Democratic | Senate, CA | Challenger or open seat | FEC |
| NORBASH, ALEXANDER | Democratic | Senate, CA | Challenger or open seat | FEC |
| O'DOWD, DAN | Democratic | Senate, CA | Challenger or open seat | FEC |
| O'NEIL, RUSTEN | Independent | Senate, CA | Challenger or open seat | FEC |
| PADILLA, ALEX | Democratic | Senate, CA | Incumbent | FEC |
| PAPPENHEIM, JOHN JOSEPH | Republican | Senate, CA | Challenger or open seat | FEC |
| PASCUCCI, CHRISTINA | Democratic | Senate, CA | Challenger or open seat | FEC |
| PORTER, KATHERINE | Democratic | Senate, CA | Challenger or open seat | FEC |
| POUND, PERRY | Democratic | Senate, CA | Challenger or open seat | FEC |
| RAB, AEJAZ ( RAJI ) | Democratic | Senate, CA | Challenger or open seat | FEC |
| REESE, LEXI | Democratic | Senate, CA | Challenger or open seat | FEC |
| REISS, JONATHAN | Republican | Senate, CA | Challenger or open seat | FEC |
| RESENDEZ, JESSICA SERENE | Democratic | Senate, CA | Challenger or open seat | FEC |
| REYNOLDS, TODD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROEDERSHEIMER, KATIE O'NEAL | Independent | Senate, CA | Challenger or open seat | FEC |
| ROLDAN, WILLY JR | W | Senate, CA | Challenger or open seat | FEC |
| ROSE, JOHN | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROSE, JOHN DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| RUZON, MARK | OTH | Senate, CA | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | Senate, CA | Incumbent | FEC |
| SCHRADER, STEPHEN JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| SERGENT, MATTHEW | Democratic | Senate, CA | Challenger or open seat | FEC |
| SHUSTER, JAMES BARTLEY | Republican | Senate, CA | Challenger or open seat | FEC |
| SIGMON, MICHAEL R | NPP | Senate, CA | Challenger or open seat | FEC |
| SIMCHOWITZ, STEFAN | Republican | Senate, CA | Challenger or open seat | FEC |
| SMITH SLATER, QUINCI RENEE | Democratic | Senate, CA | Challenger or open seat | FEC |
| SOSINSKI, JOE | Independent | Senate, CA | Challenger or open seat | FEC |
| TAPIA, CARLOS GUILLERMO | W | Senate, CA | Challenger or open seat | FEC |
| TAYLOR, ERNEST JUNIOR | Democratic | Senate, CA | Challenger or open seat | FEC |
| THELEN, DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| URSICH, TIMOTHY J | Democratic | Senate, CA | Challenger or open seat | FEC |
| WHITNEY, ELLERTON PRATT MARK III | Libertarian | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Independent | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, CORDIE LEE | Republican | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| DURAZO, JOSEPH ANTHONY | ACE | House, CA | Challenger or open seat | FEC |
| BENNINGTON, SARAH MARIE | Republican | House, CA district 1 | Challenger or open seat | FEC |
| CIENKUS, JASON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| COREY, GENE | Republican | House, CA district 1 | Challenger or open seat | FEC |
| DORAN, MIKE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| DOROTHY, DOMINICK | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| GODFREY, MARCUS SCOTT | Libertarian | House, CA district 1 | Challenger or open seat | FEC |
| KELLY, JOHN JOSEPH JJK | Republican | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| LAVIN, JEFFREY R | Libertarian | House, CA district 1 | Challenger or open seat | FEC |
| LETOURNEAU, JOSEPH IV | Independent | House, CA district 1 | Challenger or open seat | FEC |
| LYDON, ROBERT K | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MEEKS MILOJEVICH, JANAI | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MEEKS, JANAI S.O | NON | House, CA district 1 | Challenger or open seat | FEC |
| MEEKS, JANAI SO | NON | House, CA district 1 | Challenger or open seat | FEC |
| NAZARIAN, ASHKAN ALEX | Republican | House, CA district 1 | Challenger or open seat | FEC |
| PHILLIPS, TRENTEN WESTLEY | Independent | House, CA district 1 | Challenger or open seat | FEC |
| RAMOS, JONATHON ANGEL | FED | House, CA district 1 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| STEINER, MAX | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| VITELA, ALBERT JR | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WARRENS, JOANNA | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WEBSTER, AARON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| YEE, ROSE PENELOPE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| BRISENDINE, JASON | NOP | House, CA district 2 | Challenger or open seat | FEC |
| BROWER, DOUGLAS REV | Republican | House, CA district 2 | Challenger or open seat | FEC |
| COULOMBE, CHRIS | Republican | House, CA district 2 | Challenger or open seat | FEC |
| GEIST, TIMOTHY DAVID | Republican | House, CA district 2 | Challenger or open seat | FEC |
| GIBBS JENSEN, TIEF | Republican | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| KANGAS, JOLIAN | NOP | House, CA district 2 | Challenger or open seat | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| YEE, ROSE PENELOPE LAGOC | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| BISH, CHRISTINE S | Republican | House, CA district 3 | Challenger or open seat | FEC |
| DELLE, PETER J. | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| HUHN, DOUGLAS JOSEPH JR | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| JONES, KERMIT | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| MORSE, JESSICA | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| SMITH, ROBERT | NOP | House, CA district 3 | Challenger or open seat | FEC |
| BROCK, MATTHEW | Republican | House, CA district 4 | Challenger or open seat | FEC |
| ENGDAHL, ANDREW DAVID | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| FRAME, SEAN COLIN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KENNEDY, BRYNNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KISHINEFF, JASON | None | House, CA district 4 | Challenger or open seat | FEC |
| LAWTON, ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| MUNN, JOHN | Republican | House, CA district 4 | Challenger or open seat | FEC |
| PATWARDHAN, NIKET | NOP | House, CA district 4 | Challenger or open seat | FEC |
| RIEHLE, RAYMOND | Republican | House, CA district 4 | Challenger or open seat | FEC |
| SHELDON-LONDON, MONIKA LOUISE | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMAS, JACOB ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| WILSON, MARIO CHRISTOPHER | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| GIBLIN, SCOTT | Republican | House, CA district 5 | Challenger or open seat | FEC |
| KASSEL, JASON SETH | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| MAGSIG, NATHAN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MAIN, DAVID NATHAN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| OBERT, KELSTEN C | Republican | House, CA district 5 | Challenger or open seat | FEC |
| SANTAMARIA, CARLOS J | Republican | House, CA district 5 | Challenger or open seat | FEC |
| WOZNIAK, STEVE | NOP | House, CA district 5 | Challenger or open seat | FEC |
| BARAJAS, ADAN JOSEPH | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| BLACK, KARLA | R | House, CA district 6 | Challenger or open seat | FEC |
| BURNETT, KIEMARR SALEH LORD | Republican | House, CA district 6 | Challenger or open seat | FEC |
| DANIELS, BRET | Republican | House, CA district 6 | Challenger or open seat | FEC |
| DELUZ, CRAIG | Republican | House, CA district 6 | Challenger or open seat | FEC |
| GORMAN, MARK EDWARD | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| HAISTY, SHERWOOD | Republican | House, CA district 6 | Challenger or open seat | FEC |
| HAMILTON, TAMIKA | Republican | House, CA district 6 | Challenger or open seat | FEC |
| JEDEIKIN, MATHEW RAY | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, DELMA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| KILEY, KEVIN | OTH | House, CA district 6 | Incumbent | FEC |
| KIPUKE, OMBA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| LANGFORD, DAVID KEITH JR. | Republican | House, CA district 6 | Challenger or open seat | FEC |
| MARTIN, MARSHALL | Republican | House, CA district 6 | Challenger or open seat | FEC |
| MCQUAID, JOHN DENNIS | Republican | House, CA district 6 | Challenger or open seat | FEC |
| RICHARDSON, CHRIS | Green | House, CA district 6 | Challenger or open seat | FEC |
| SALEH, KIE'MARR A LORD | COM | House, CA district 6 | Challenger or open seat | FEC |
| SCOTT, JIM EDWIN | Republican | House, CA district 6 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| FREMGEN, JAMES LUCAS | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| MANDEL, DAVID | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| PATTERSON, ROBERT BUZZ | Republican | House, CA district 7 | Challenger or open seat | FEC |
| SEMENENKO, MAX | Republican | House, CA district 7 | Challenger or open seat | FEC |
| SILVA, THOMAS | Republican | House, CA district 7 | Challenger or open seat | FEC |
| CARON, CRAYA CONRADINA | Republican | House, CA district 8 | Challenger or open seat | FEC |
| CONAWAY, ROBERT DEAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ELLARS, JAMES ROBERT | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ESMUS, JEFF | NON | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| GOMEZ, BLANCA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| GREEN, JACQUETTA L | W | House, CA district 8 | Challenger or open seat | FEC |
| JOHNSON, DEMNLUS III | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| MATHISEN, PETER G | NPA | House, CA district 8 | Challenger or open seat | FEC |
| RECILE, RUDY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| RILEY, CHRISTOPHER | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| STAAT, JEREMY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| SUDDUTH, CHERYL | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CHIMA, HARPREET SINGH | Democratic | House, CA district 9 | Challenger or open seat | FEC |
| DOOD, BRETT R | Republican | House, CA district 9 | Challenger or open seat | FEC |
| FENG, KARENA APPLE | Independent | House, CA district 9 | Challenger or open seat | FEC |
| HARDER, JOSH | Democratic | House, CA district 9 | Incumbent | FEC |
| JAFRI, KHALID | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MADISON, JONATHAN | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCBRIDE, JOHN | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| MEDINA, ALEXIS | Democratic | House, CA district 9 | Challenger or open seat | FEC |
| PATTI, THOMAS | Republican | House, CA district 9 | Challenger or open seat | FEC |
| SHOEMAKER, JAMES H | Republican | House, CA district 9 | Challenger or open seat | FEC |
| ASLANPOUR, SIMON MICHAEL | Republican | House, CA district 10 | Challenger or open seat | FEC |
| BLEVINS, RYAN | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| CHEN, NOLAN | Republican | House, CA district 10 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| DOSSETT, CHARLES | Republican | House, CA district 10 | Challenger or open seat | FEC |
| ELSHERBINI, MOHAMED S | NPA | House, CA district 10 | Challenger or open seat | FEC |
| JALIS, MUSA | Republican | House, CA district 10 | Challenger or open seat | FEC |
| KERR, MICHAEL | Green | House, CA district 10 | Challenger or open seat | FEC |
| NGUYEN, CALVIN | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| PICCININI, KATHERINE | Republican | House, CA district 10 | Challenger or open seat | FEC |
| SWEENEY, JOSEPH J | Independent | House, CA district 10 | Challenger or open seat | FEC |
| BLUE, ELIJAH LEWIS | Libertarian | House, CA district 11 | Challenger or open seat | FEC |
| BOYCE, JASON | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| BUTTAR, SHAHID | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| DEL CASTELLO, EVE | Republican | House, CA district 11 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 11 | Challenger or open seat | FEC |
| LOU, BRUCE C | Republican | House, CA district 11 | Challenger or open seat | FEC |
| LYTTON, ALVA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| MIKELS, MARJORIE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| NICHELSON, LARRY | Republican | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| SHARMA, NISHA | Republican | House, CA district 11 | Challenger or open seat | FEC |
| VON KRIEG, BIANCA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| WONG, TIMOTHY | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| XIONG, JINGCHAO | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| XIONG, JINGCHAO | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| ZENG, JASON | Republican | House, CA district 11 | Challenger or open seat | FEC |
| BACELAR, AGATHA | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| CURRY, ERIC | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DAYSOG, TONY | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| INGRAM, DENARD | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| KAPLAN, GLENN | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | House, CA district 12 | Incumbent | FEC |
| LENTZ, GREG | Republican | House, CA district 12 | Challenger or open seat | FEC |
| MARKS, JOHN RYAN | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| NUERGE, NED | Republican | House, CA district 12 | Challenger or open seat | FEC |
| SANCHEZ, TIM | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| SIKDER, ABDUR R | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| SIMON, LATEEFAH | Democratic | House, CA district 12 | Incumbent | FEC |
| SLAUSON, STEPHEN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| TODD, ANDRE | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| TRAN, JENNIFER | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| WILSON, ERIC | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| WOODY, JASON J | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| ARBALLO, PHIL | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| BOYD, BRAD | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| DUARTE, JOHN | Republican | House, CA district 13 | Incumbent | FEC |
| ESCOBEDO, ALBERTO | None | House, CA district 13 | Challenger or open seat | FEC |
| GRAY, ADAM C. | Democratic | House, CA district 13 | Incumbent | FEC |
| KRUTTIVENTI, VIN | Republican | House, CA district 13 | Challenger or open seat | FEC |
| LINCOLN, KEVIN J II | Republican | House, CA district 13 | Challenger or open seat | FEC |
| MARTINEZ, DIEGO J | Republican | House, CA district 13 | Challenger or open seat | FEC |
| PITERMAN, KONSTANTINE NIKKA-SHER | Republican | House, CA district 13 | Challenger or open seat | FEC |
| ROSARIO-SIGALA, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| SIGALA, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| SIGALA-ROSARIO, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| GRCAR, JOSEPH DOC | Republican | House, CA district 14 | Challenger or open seat | FEC |
| HAYDEN, ALISON | Republican | House, CA district 14 | Challenger or open seat | FEC |
| IYER, STEVE | Republican | House, CA district 14 | Challenger or open seat | FEC |
| PETERS, JAMES ANDREW JR | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| REYNOSO, LUIS | Republican | House, CA district 14 | Challenger or open seat | FEC |
| SIMARD, LIAM MIGUEL | UN | House, CA district 14 | Challenger or open seat | FEC |
| SINGH, MAJOR | NPA | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| WATTERS, ANDREW G. | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| WONG, THOMAS | Republican | House, CA district 14 | Challenger or open seat | FEC |
| CAMPBELL, SAMANTHA | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| CANEPA, DAVID | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| COTA, JACKIE S | Republican | House, CA district 15 | Challenger or open seat | FEC |
| GARRITY, JAMES | UN | House, CA district 15 | Challenger or open seat | FEC |
| GRUNDMANN, DON J | CON | House, CA district 15 | Challenger or open seat | FEC |
| KRAMER, ANNA | Republican | House, CA district 15 | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | House, CA district 15 | Challenger or open seat | FEC |
| MATTAMMAL, GUS | Republican | House, CA district 15 | Challenger or open seat | FEC |
| MULLIN, KEVIN | Democratic | House, CA district 15 | Incumbent | FEC |
| BELL, EVAN | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| BERNSTEIN, JOBY | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| DIXON, PETER | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| FINAN, NICHOLAS JAMES | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| KUMAR, RISHI | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| LICCARDO, SAM T. | Democratic | House, CA district 16 | Incumbent | FEC |
| LOW, EVAN | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| LYTHCOTT-HAIMS, JULIE | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| MOSTAFA, AHMED | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| OHTAKI, PETER I | Republican | House, CA district 16 | Challenger or open seat | FEC |
| RADING, AJWANG | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| RYAN, KARL | Republican | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SOLOMON, BENJAMIN THOMAS | Republican | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| TANAKA, GREG LIN | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| VISWANATHAN, NICKESH | Unknown | House, CA district 16 | Challenger or open seat | FEC |
| WILLIAMS, KIM | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| CHEN, ANITA S | Republican | House, CA district 17 | Challenger or open seat | FEC |
| DEHN, JOSEPH W III | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FORBES, STEPHEN | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| RAMIREZ, MARIO ART | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| TANDON, RITESH | Republican | House, CA district 17 | Challenger or open seat | FEC |
| ACEVEDO-ARREGUIN, LUIS ANTONIO | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| HERNANDEZ, PETER | Republican | House, CA district 18 | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTRELVIA | OTH | House, CA district 18 | Challenger or open seat | FEC |
| KIFLE, LUELE | 18 | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| MILAN, LAWRENCE E | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| NIJMEH, CHARLENE CONCEPCION | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| ANDERSON, JASON | Republican | House, CA district 19 | Challenger or open seat | FEC |
| CRUZ-LARA, IGNACIO ISRAEL | Republican | House, CA district 19 | Challenger or open seat | FEC |
| DOUGHERTY, SEAN JACOB | Green | House, CA district 19 | Challenger or open seat | FEC |
| EKPETE, ULOMA | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| EPPERSON, DALILA | Republican | House, CA district 19 | Challenger or open seat | FEC |
| GORMAN, JEFF | Republican | House, CA district 19 | Challenger or open seat | FEC |
| JAMES, HANNAH | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| TORRES, IVAN | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| ADDISON WILLIAMS, AUDREY ELIZABETH | Republican | House, CA district 20 | Challenger or open seat | FEC |
| BOUDREAUX, MICHAEL | Republican | House, CA district 20 | Challenger or open seat | FEC |
| BRUCE, NATHANIEL REED | Republican | House, CA district 20 | Challenger or open seat | FEC |
| BURROWS, JOHNATHON | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| CARDOZA, JAMES V | W | House, CA district 20 | Challenger or open seat | FEC |
| COHEN, ANNA ZOE | Republican | House, CA district 20 | Challenger or open seat | FEC |
| DEWELL, BEN | Independent | House, CA district 20 | Challenger or open seat | FEC |
| ELLIS, STANLEY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| ESPOSITO, TJ | NOP | House, CA district 20 | Challenger or open seat | FEC |
| FLUHART, DAVID J. | None | House, CA district 20 | Challenger or open seat | FEC |
| FONG, VINCE | Republican | House, CA district 20 | Incumbent | FEC |
| GIGLIO, DAVID ANTHONY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| KIRKLAND, KYLE R | Republican | House, CA district 20 | Challenger or open seat | FEC |
| KULIKOFF, KELLY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| KUMAR, HARMESH | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| MORALES, JESUS ANDY | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| PIATT, MATTHEW | Republican | House, CA district 20 | Challenger or open seat | FEC |
| STOLL, MATTHEW | Republican | House, CA district 20 | Challenger or open seat | FEC |
| WOOD, MARISA | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| COX, TERRENCE JOHN (TJ) | Democratic | House, CA district 21 | Incumbent | FEC |
| FLORES-GIBSON, MARTHA ELENA | Republican | House, CA district 21 | Challenger or open seat | FEC |
| GARCIA, ERIC | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| MAHER, MICHAEL A | Republican | House, CA district 21 | Challenger or open seat | FEC |
| MEDEIROS, ADAM THOMAS | Republican | House, CA district 21 | Challenger or open seat | FEC |
| STOLL, MATTHEW | Republican | House, CA district 21 | Challenger or open seat | FEC |
| CAMPOS, LOUIE J | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| CONWAY, CONNIE | Republican | House, CA district 22 | Incumbent | FEC |
| HENG, ELIZABETH | Republican | House, CA district 22 | Challenger or open seat | FEC |
| HUBBARD, LOURIN | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| HURTADO, MELISSA | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| MATHYS, CHRIS | Republican | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| OSORIO, BRYAN | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| SALAS, RUDY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| TARASEVIC, WILLIAM | UN | House, CA district 22 | Challenger or open seat | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| ARCEO, MIGUEL ANGEL | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| FAVRO, MATTHEW | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| GILL, LOUIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MARSHALL, DEREK | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| OBERNOLTE, JAY | Republican | House, CA district 23 | Incumbent | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| COLE, THOMAS | Republican | House, CA district 24 | Challenger or open seat | FEC |
| FAREED, JUSTIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| KENNEDY, ANGELA | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| PASQUARELLA, HELENA | OTH | House, CA district 24 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| WESLANDER QUAID, MICHELE | NPA | House, CA district 24 | Challenger or open seat | FEC |
| YOUNG, KENNETH | Independent | House, CA district 24 | Challenger or open seat | FEC |
| YOUNG, KENNETH | Independent | House, CA district 24 | Challenger or open seat | FEC |
| BELLINGHAM, CHRIS | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| BURKETT, RYAN DEAN | NOP | House, CA district 25 | Challenger or open seat | FEC |
| CHAPA, MIGUEL | Republican | House, CA district 25 | Challenger or open seat | FEC |
| HAWKINS, BRIAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| HILL, KATHERINE LAUREN | Democratic | House, CA district 25 | Incumbent | FEC |
| JENKS, KENNETH | Republican | House, CA district 25 | Challenger or open seat | FEC |
| LOZANO, DAVID | Republican | House, CA district 25 | Challenger or open seat | FEC |
| LUEVANOS, RUTH | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| ORTIZ, OSCAR | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| REISS, JONATHAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| STRANSKY, DARA FAYE | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| STRICKLAND, ANTHONY A | Republican | House, CA district 25 | Challenger or open seat | FEC |
| THAKUR, ALBERT 'BURT' | Republican | House, CA district 25 | Challenger or open seat | FEC |
| TRUMAN, CECI | Republican | House, CA district 25 | Challenger or open seat | FEC |
| TYSON, BRIAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UNDERWOOD JACOBS, ANGELA | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UYGUR, CENK | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALDEZ-ORTEGA, ANIBAL | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALLADARES, SUZETTE MARTINEZ | Republican | House, CA district 25 | Challenger or open seat | FEC |
| WEEKS, IAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| ANSTEAD, CHRIS | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| BOYER, BRUCE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| GOODMAN, DAVID | Independent | House, CA district 26 | Challenger or open seat | FEC |
| JACOBS, MATTHEW | Republican | House, CA district 26 | Challenger or open seat | FEC |
| KOSLOW, MICHAEL S | Republican | House, CA district 26 | Challenger or open seat | FEC |
| MAROTTA, JOSEPH | Republican | House, CA district 26 | Challenger or open seat | FEC |
| MIKELS, MARJORIE MUSSER | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| MIKHAIL, FADDE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| TAYLOR, PAUL N | Republican | House, CA district 26 | Challenger or open seat | FEC |
| WILSON, DANIEL | Independent | House, CA district 26 | Challenger or open seat | FEC |
| CARDENAS, BEATRICE FOR | Republican | House, CA district 27 | Challenger or open seat | FEC |
| CARRILLO JR, FRANCISCO | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| GARCIA, MICHAEL | Republican | House, CA district 27 | Incumbent | FEC |
| QUARTEY, JOHN QUAYE II | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| RUDNICK, FREDERICK D | Republican | House, CA district 27 | Challenger or open seat | FEC |
| SMITH, CHRISTY | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| WHITESIDES, GEORGE | Democratic | House, CA district 27 | Incumbent | FEC |
| WITT, BRYAN | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| AGBEDE, AKINYEMI | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| ANDERSON, CHAD D | NOP | House, CA district 28 | Challenger or open seat | FEC |
| BARBOSA, JENNIFER | Independent | House, CA district 28 | Challenger or open seat | FEC |
| CASTANEDA, JOSE | Libertarian | House, CA district 28 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| DEPAOLIS, GIULIANO GIOVANNI | NPA | House, CA district 28 | Challenger or open seat | FEC |
| HALLMAN, WESLEY PHILLIP | Republican | House, CA district 28 | Challenger or open seat | FEC |
| LEWIS, KERRY B | Republican | House, CA district 28 | Challenger or open seat | FEC |
| LUCERO, ROBERT GEORGE JR | Republican | House, CA district 28 | Challenger or open seat | FEC |
| MARTINEZ, SELENA ROSE | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| PATTERSON, WILLIAM | PAF | House, CA district 28 | Challenger or open seat | FEC |
| VERLATO, APRIL | Republican | House, CA district 28 | Challenger or open seat | FEC |
| WALLACE, BONNIE | Republican | House, CA district 28 | Challenger or open seat | FEC |
| BERNAL, BENITO | Republican | House, CA district 29 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| CARRANZA, MARGARITA MARIA | Republican | House, CA district 29 | Challenger or open seat | FEC |
| DUENAS, ANGELICA MARIA | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| RIVAS, LUZ | Democratic | House, CA district 29 | Incumbent | FEC |
| ARREAGA, FRANCESCO | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| BALEKIAN, ALEX ARTO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| BEN-DOV, NAORA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| BERINA, COURTNEY JAMES | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| BOCANEGRA, JOSH | NOP | House, CA district 30 | Challenger or open seat | FEC |
| BRITTON, DREW MICHAEL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| CARROLL, BRIAN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| CASTELLANOS, MIKE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| DORAZIO, ROYCE | NPA | House, CA district 30 | Challenger or open seat | FEC |
| DUNWOODY, STEPHEN ANDRAE' | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| FEUER, MICHAEL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| FRIEDMAN, LAURA | Democratic | House, CA district 30 | Incumbent | FEC |
| GENOVESE, SAL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| GIPSON, PATRICK LEE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| GIPSON, PATRICK LEE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| HUCKABEE, MICHAEL WAYNE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| IDAN, SARAH | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| KENNEDY, RONDA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| MARTINEZ, J. EMILIO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| MELVOIN, NICK | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| NAJERA, COURTNEY SIMONE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| PUDLO, G MAEBE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| RATEVOSIAN, JIRAIR | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| RODRIGUEZ, TONY | Independent | House, CA district 30 | Challenger or open seat | FEC |
| SAVAGE, BEN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| SAWCHUK, ERIC RICHARD | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| SHYNE, SEPI | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| ZUNIGA, PALOMA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| ARCHULETA, BOB | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHING, ERIC J | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CISNEROS, GILBERT | Democratic | House, CA district 31 | Incumbent | FEC |
| DE LUCA, ROCCO | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GUTIERREZ, REX DALE ALEXANDER | Republican | House, CA district 31 | Challenger or open seat | FEC |
| HAFIF, GREGORY KEITH | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| KURT, JOSE | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| LEVI, ERSKINE LINCOLN JR | Republican | House, CA district 31 | Challenger or open seat | FEC |
| LUTZ, MARY ANN | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| MANVEL, MARIE | NOP | House, CA district 31 | Challenger or open seat | FEC |
| MARTINEZ, DANIEL JOSE BOCIC | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MARTINEZ, DANIEL JOSE BOCIC ESQ. | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MILLER, GARY G | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MORENO, ELVIRA | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| RUBIO, SUSAN | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| VAZQUES, RICARDO | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| WEEMS, EUGENE | W | House, CA district 31 | Challenger or open seat | FEC |
| AAZAMI, SHERVIN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| ABBITT, DAVE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| AHUJA, CHRISTOPHER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| BROWN, DAVID | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| GONZALES, EMANUEL LAWRENCE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KHAN, MUMIN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| PHILLIPS, MIA MICHELLE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RHODES, AARIKA SAMONE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SHUSTER, JAMES BARTLEY | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SMITH, DOUGLAS | NOP | House, CA district 32 | Challenger or open seat | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| STRICKLAND, TRAVIS | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| THOMPSON, LARRY | Republican | House, CA district 32 | Challenger or open seat | FEC |
| VOLOTZKY, LUCIE LAPOINTE | Republican | House, CA district 32 | Challenger or open seat | FEC |
| WITT, TREVOR LUCAS | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| WOLFE, GEOFFREY | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| HERMAN, THOMAS | Republican | House, CA district 33 | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| PORTER, JOHN MARK | W | House, CA district 33 | Challenger or open seat | FEC |
| RICHTER, ERNEST | Republican | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| AHN, ROBERT LEE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| ALVAREZ, SIMON MARK | Republican | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| CARMONA, ARTURO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| FERRELL, DAVID | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| FERRELL, DAVID MATTHEW | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GOMEZ, JIMMY | Democratic | House, CA district 34 | Incumbent | FEC |
| HERNANDEZ, SARA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID YUNG HO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| LEE, CALVIN | Republican | House, CA district 34 | Challenger or open seat | FEC |
| PITTMAN, SHANNEL | Green | House, CA district 34 | Challenger or open seat | FEC |
| REVELES, AARON | PFP | House, CA district 34 | Challenger or open seat | FEC |
| SCHNEIDER, DAN | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| SCOTT, KEANAKAY | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARGILE, MIKE | Republican | House, CA district 35 | Challenger or open seat | FEC |
| ERBST, BOB | Republican | House, CA district 35 | Challenger or open seat | FEC |
| MAY, MELISSA | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| SUTHAR, VIJAL | Republican | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| CHEAURE, MICHAEL JAMES | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| COLLINS, JOE E III | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GATES, DERRICK ROLLIN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GIBSON, JAMES FRANCIS | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GLICK, JESSE FALLON | Republican | House, CA district 36 | Challenger or open seat | FEC |
| HAKAMI, ARIANA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| RAGGE ANDERSON, CLAIRE | NON | House, CA district 36 | Challenger or open seat | FEC |
| RUIZ, RAUL | Republican | House, CA district 36 | Challenger or open seat | FEC |
| TOOMIM, LEAH MELISSA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| UPCHURCH, ANDREW | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| VAZQUEZ, DANIEL BENETEZ | AIC | House, CA district 36 | Challenger or open seat | FEC |
| BASS, KAREN | Democratic | House, CA district 37 | Incumbent | FEC |
| CARMICHAEL, ADAM J | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| FEDALIZO, BALTAZAR | Republican | House, CA district 37 | Challenger or open seat | FEC |
| HILL, STEVE | NPA | House, CA district 37 | Challenger or open seat | FEC |
| KAMLAGER-DOVE, SYDNEY | Democratic | House, CA district 37 | Incumbent | FEC |
| LEE, DANIEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| MENDOZA, SANDRA | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| PARKER, JOHN THOMPSON | OTH | House, CA district 37 | Challenger or open seat | FEC |
| PERRY, JAN | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| REY, JUAN | NOP | House, CA district 37 | Challenger or open seat | FEC |
| SHURE, MICHAEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| SILVERA, AARON ALBERT | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 38 | Challenger or open seat | FEC |
| CASAS, PEDRO ANTONIO | Republican | House, CA district 38 | Challenger or open seat | FEC |
| JONES, PAUL IRVING REVEREND | Republican | House, CA district 38 | Challenger or open seat | FEC |
| MOREIRA, ELIZABETH | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| OCHOA, ROBERT | Republican | House, CA district 38 | Challenger or open seat | FEC |
| SAREGA, JOHN | Republican | House, CA district 38 | Challenger or open seat | FEC |
| TOLAR, MICHAEL | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| AUZENNE, ORAY | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| COREY, GENE RAYMOND ILL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| COX, STEVE | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CULLUM, JOHN J | Republican | House, CA district 39 | Challenger or open seat | FEC |
| LEE, HERBERT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| MINNELLA, JOHN LORDSAL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| MORENO, TONY | Republican | House, CA district 39 | Challenger or open seat | FEC |
| PETERSON, ARTHUR LAVERNE | Republican | House, CA district 39 | Challenger or open seat | FEC |
| SERPA, DAVID | Republican | House, CA district 39 | Challenger or open seat | FEC |
| SPINNEY, BILL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| CORTES BARRAGAN, RODOLFO | Green | House, CA district 40 | Challenger or open seat | FEC |
| DAMIKOLAS, ALLYSON | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KERR, JOSEPH | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KIM, YOUNG | Republican | House, CA district 40 | Incumbent | FEC |
| MAHMOOD, ASIF | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| METZGER, ORION PAIGE | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| RIVERA, JUAN LUIS | Libertarian | House, CA district 40 | Challenger or open seat | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| HAWKINS, BRIAN | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| MELENDEZ, MELISSA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| MOSELY, BRANDON | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| NEVENIC, ANNA | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| PENNA, KYLE CHRISTIAN | Independent | House, CA district 41 | Challenger or open seat | FEC |
| ROLLINS, WILL | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SHERIDAN, TIMOTHY J | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SMITH, AJA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WIEBELHAUS, CODY MICHAEL | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WILLIAMS, GRACE I | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| BELTRAN, JOAQUIN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| BELTRAN, JOAQUIN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BURLEY, BRIAN J | Republican | House, CA district 42 | Challenger or open seat | FEC |
| FRITZ, DAVID | Republican | House, CA district 42 | Challenger or open seat | FEC |
| GARCIA, CRISTINA | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| GARCIA, ROBERT | Democratic | House, CA district 42 | Incumbent | FEC |
| LOPEZ, JAZMIN NICOLE | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| MARSTON, REGINA L | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| PHAM, LONG | Republican | House, CA district 42 | Challenger or open seat | FEC |
| PHAM, LONG | Republican | House, CA district 42 | Challenger or open seat | FEC |
| RIOS, ANGEL ANTHONY | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| SUMMERVILLE, WILLIAM M. | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| CHEADLE, GREGORY | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| KEYS, REGINALD FERNANDO | UN | House, CA district 43 | Challenger or open seat | FEC |
| KNIGHT, DAVID | Republican | House, CA district 43 | Challenger or open seat | FEC |
| NAVARRO, OMAR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| PRATT, EVETTE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| SIMES, REGINA RENEE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| WIGGINS, CHRISTOPHER BLAKE | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| WILLIAMS, STEVE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| GROH, ROGER | Republican | House, CA district 44 | Challenger or open seat | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| JOYA, ANALILIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| NETTLES, AARON | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| CHEN, JAY | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FORDE, BRIAN | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FURIN, RHONDA DEE | Republican | House, CA district 45 | Challenger or open seat | FEC |
| HUNT, CHEYENNE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| NGUYEN, KIM | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PAI, ADITYA | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PHAM, JIMMY D | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| RICHTER, JENNIFER | Republican | House, CA district 45 | Challenger or open seat | FEC |
| SCHAEFER, MIKE MICHAEL | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| STEEL, MICHELLE | Republican | House, CA district 45 | Incumbent | FEC |
| TRAN, DEREK | Democratic | House, CA district 45 | Incumbent | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| GONZALES, CHRISTOPHER | Republican | House, CA district 46 | Challenger or open seat | FEC |
| ORTEGA, MICHAEL | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| PAN, DAVID | Republican | House, CA district 46 | Challenger or open seat | FEC |
| RUVALCABA, JESUS | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| BAKER, LORI KIRKLAND | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CHU, WEIMING DAVID MD | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CLIFFORD, DAVID | Republican | House, CA district 47 | Challenger or open seat | FEC |
| COTTON, STEVEN | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CRANDALL, TERRY LAWRENCE | NPA | House, CA district 47 | Challenger or open seat | FEC |
| GOFFE, ANDREW LEE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| GRIFFIN, JAMES BRIAN | Republican | House, CA district 47 | Challenger or open seat | FEC |
| HASHEMIEH, JULIA | Republican | House, CA district 47 | Challenger or open seat | FEC |
| JONES, DOM | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| LAM, RYAN SAGE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| LYONS, MICHELLE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| MCGRATH, THOMAS PIERCE | NPA | House, CA district 47 | Challenger or open seat | FEC |
| MCLEOD, JALEN DUPREE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| MIN, DAVE | Democratic | House, CA district 47 | Incumbent | FEC |
| MOUA, SOU | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PHAN WEST, AMY | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PORTER, KATHERINE | Democratic | House, CA district 47 | Incumbent | FEC |
| ROBERTS, BOYD | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| ROUDA, HARLEY E JR | Democratic | House, CA district 47 | Incumbent | FEC |
| SCHAEFER, MIKE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| SMITH, WILLIAM | NOP | House, CA district 47 | Challenger or open seat | FEC |
| UKROPINA, MAX | Republican | House, CA district 47 | Challenger or open seat | FEC |
| VEAZEY, PETER D | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WEISS, JOANNA | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| ZAIDI, SHARIQ | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| BALASINSKI, KRZYSZTOF CHRIS | Independent | House, CA district 48 | Challenger or open seat | FEC |
| CAMPA-NAJJAR, AMMAR | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| COX, CHRISTOPHER | Republican | House, CA district 48 | Challenger or open seat | FEC |
| HOULAHAN, STEPHEN WILLIAM | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| KOTICK, MICHAEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| MURILLO, TAMI LE | Republican | House, CA district 48 | Challenger or open seat | FEC |
| OATMAN, LAURA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| RASCON, MATTHEW G. | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHUESLER, JOHN THOMAS | Republican | House, CA district 48 | Challenger or open seat | FEC |
| SHANAHAN, WHITNEY | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SIMON, MICHAEL CRAIG | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| STURGES, CALEB SAMUEL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ADAMS, SHERYL | Republican | House, CA district 49 | Challenger or open seat | FEC |
| BARTLETT, LISA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| GUNDERSON, MATT | Republican | House, CA district 49 | Challenger or open seat | FEC |
| LEVIN, MIKE | Democratic | House, CA district 49 | Incumbent | FEC |
| MARYOTT, BRIAN L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| MONROE, KATE M | Republican | House, CA district 49 | Challenger or open seat | FEC |
| RODRIGUEZ, CHRISTOPHER | Republican | House, CA district 49 | Challenger or open seat | FEC |
| TAYLOR, RENEE | Republican | House, CA district 49 | Challenger or open seat | FEC |
| WILKINSON, MARGARITA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 50 | Challenger or open seat | FEC |
| BAROSAY, MARI | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| BILASH, TIMOTHY DANIEL M.D. | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| BONO, PETER J | Republican | House, CA district 50 | Challenger or open seat | FEC |
| CHIDDICK, DAVID | Republican | House, CA district 50 | Challenger or open seat | FEC |
| DUNCAN, HUNTER SPEARS | Republican | House, CA district 50 | Challenger or open seat | FEC |
| HUNTER, DUNCAN D | Republican | House, CA district 50 | Incumbent | FEC |
| JAHN, LUCINDA | NOP | House, CA district 50 | Challenger or open seat | FEC |
| JONES, BRIAN W | Republican | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| MOSS, SOLOMON | Republican | House, CA district 50 | Challenger or open seat | FEC |
| OTA, HENRY ALAN | FS | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| RYANS, JERLILIA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| WILSKE, LARRY A | Republican | House, CA district 50 | Challenger or open seat | FEC |
| CAPLAN, STAN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| CORTES, JOSE MARCOS | PFP | House, CA district 51 | Challenger or open seat | FEC |
| DE GANNA, BENJAMIN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| HIDALGO, JUAN M SGTMAJ JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| HOLMAN LEAK, BARRETT | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| JACOBS, SARA | Democratic | House, CA district 51 | Incumbent | FEC |
| RODRIGUEZ, SAUL ALEJANDRO | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| SHIOURA, HILAIRE FUJI | OTH | House, CA district 51 | Challenger or open seat | FEC |
| WELLS, BILL D. | Republican | House, CA district 51 | Challenger or open seat | FEC |
| BAILEY, RICHARD | Republican | House, CA district 52 | Challenger or open seat | FEC |
| GEFFENEY, TYLER | Republican | House, CA district 52 | Challenger or open seat | FEC |
| HOSANNA, JUDAH | Republican | House, CA district 52 | Challenger or open seat | FEC |
| LEE, JUSTIN | Republican | House, CA district 52 | Challenger or open seat | FEC |
| SUZARA, JEREMIAH ANGELES | Independent | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| ANDERSON, JASON | Republican | House, CA district 53 | Challenger or open seat | FEC |
| FOUNTAIN, JOSEPH | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| GOMEZ, GEORGETTE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| KUTNER, ERIC ROGER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| SHARMA, PETER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| STODDARD, CHRISTOPHER | Republican | House, CA district 53 | Challenger or open seat | FEC |
2021–2022 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| AGBEDE, AKINYEMI | Democratic | Senate, CA | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | Senate, CA | Challenger or open seat | FEC |
| GRUNDMANN, DON J. | NOP | Senate, CA | Challenger or open seat | FEC |
| INGRAM, DENARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| PETRIS, ENRIQUE | Republican | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROTH, MARC ALEXANDER | NOP | Senate, CA | Challenger or open seat | FEC |
| THEODORE, CHRIS | Democratic | Senate, CA | Challenger or open seat | FEC |
| AINSWORTH, BRIAN KEVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| ARNOLD, MARIE ENCAR | Democratic | Senate, CA | Challenger or open seat | FEC |
| ARNOLD, MARIE ENCAR A | Democratic | Senate, CA | Challenger or open seat | FEC |
| BHUMITRA, ARUN K | Republican | Senate, CA | Challenger or open seat | FEC |
| BOCANEGRA, JOSHUA | Democratic | Senate, CA | Challenger or open seat | FEC |
| BRADFORD, DAPHNE | Independent | Senate, CA | Challenger or open seat | FEC |
| BRADLEY, JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| CARROLL, JERRY LEON | OTH | Senate, CA | Challenger or open seat | FEC |
| CONN, JAMES HENRY | Green | Senate, CA | Challenger or open seat | FEC |
| DE LA FUENTE, ROQUE ROCKY | Republican | Senate, CA | Challenger or open seat | FEC |
| ELIST, JON | Republican | Senate, CA | Challenger or open seat | FEC |
| ELIZONDO, PAMELA | Green | Senate, CA | Challenger or open seat | FEC |
| FEINSTEIN, DIANNE | Democratic | Senate, CA | Incumbent | FEC |
| FENNELL, JEREMY | Democratic | Senate, CA | Challenger or open seat | FEC |
| FOXINGTON, DIANE | Democratic | Senate, CA | Challenger or open seat | FEC |
| FRANKLIN, CARSON HENRY JR | Democratic | Senate, CA | Challenger or open seat | FEC |
| GARCIA, ELEANOR | None | Senate, CA | Challenger or open seat | FEC |
| GARY-PANDOL, DENICE LYN | Republican | Senate, CA | Challenger or open seat | FEC |
| GIRARD, YVONNE RENEE | Republican | Senate, CA | Challenger or open seat | FEC |
| GUTIERREZ, PAUL ANTHONY | Republican | Senate, CA | Challenger or open seat | FEC |
| HALL, MYRON LOUIS | Republican | Senate, CA | Challenger or open seat | FEC |
| HARRIS, KAMALA D | Democratic | Senate, CA | Incumbent | FEC |
| HARTSON, ALISON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HENG, ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| HERLE, DHRUVA | Democratic | Senate, CA | Challenger or open seat | FEC |
| HOLLETT-BILLINGSLEY, CHLOE | Democratic | Senate, CA | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTR | OTH | Senate, CA | Challenger or open seat | FEC |
| KHENSON, MAX | Democratic | Senate, CA | Challenger or open seat | FEC |
| LIEW, SARAH | Republican | Senate, CA | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | Senate, CA | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | Senate, CA | Challenger or open seat | FEC |
| LOVE, BARRY PAUL | Republican | Senate, CA | Challenger or open seat | FEC |
| LUCERO, ROBERT GEORGE JR | Republican | Senate, CA | Challenger or open seat | FEC |
| MANDELA, BARACK OBAMA | Republican | Senate, CA | Challenger or open seat | FEC |
| MCGURR, MATTHEW E. | Democratic | Senate, CA | Challenger or open seat | FEC |
| MEHTA, URVISHKUMAR | FED | Senate, CA | Challenger or open seat | FEC |
| MEUSER, MARK | Republican | Senate, CA | Challenger or open seat | FEC |
| O'DOWD, DAN | Democratic | Senate, CA | Challenger or open seat | FEC |
| PADILLA, ALEX | Democratic | Senate, CA | Incumbent | FEC |
| PARKER, JOHN | W | Senate, CA | Challenger or open seat | FEC |
| PIRJADA, OBAIDUL HUQ | Democratic | Senate, CA | Challenger or open seat | FEC |
| RATLIFF, IRENE | NOP | Senate, CA | Challenger or open seat | FEC |
| RESENDEZ, JESSICA SERENE | Democratic | Senate, CA | Challenger or open seat | FEC |
| REYNOLDS, TODD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROEDERSHEIMER, KATIE O'NEAL | Independent | Senate, CA | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SCHRADER, STEPHEN JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| SERGENT, MATTHEW | Democratic | Senate, CA | Challenger or open seat | FEC |
| SMITH, CHARLES E | Republican | Senate, CA | Challenger or open seat | FEC |
| TAPIA, CARLOS GUILLERMO | W | Senate, CA | Challenger or open seat | FEC |
| TAYLOR, ERNEST JUNIOR | Democratic | Senate, CA | Challenger or open seat | FEC |
| TAYLOR, PAUL A | Republican | Senate, CA | Challenger or open seat | FEC |
| TEMURI, PRINCE MUHAMMAD ALI HH | UPP | Senate, CA | Challenger or open seat | FEC |
| THACH, MARY | None | Senate, CA | Challenger or open seat | FEC |
| URBINA, ERIK | Republican | Senate, CA | Challenger or open seat | FEC |
| URSICH, TIMOTHY J | Democratic | Senate, CA | Challenger or open seat | FEC |
| WHITNEY, ELLERTON PRATT MARK III | Libertarian | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Independent | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, CORDIE LEE | Republican | Senate, CA | Challenger or open seat | FEC |
| ZHOU, LIJUN (LILY) | Republican | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| CIENKUS, JASON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| COREY, GENE | Republican | House, CA district 1 | Challenger or open seat | FEC |
| DENNEY, AUDREY L | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| GODFREY, MARCUS SCOTT | Libertarian | House, CA district 1 | Challenger or open seat | FEC |
| JORDAN, LAWRENCE WHITING | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| LAVIN, JEFFREY R | Libertarian | House, CA district 1 | Challenger or open seat | FEC |
| LETOURNEAU, JOSEPH IV | Independent | House, CA district 1 | Challenger or open seat | FEC |
| LYDON, ROBERT K | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| NUTS, SUCK MY | Republican | House, CA district 1 | Challenger or open seat | FEC |
| PHILLIPS, TRENTEN WESTLEY | Independent | House, CA district 1 | Challenger or open seat | FEC |
| RAMOS, JONATHON ANGEL | FED | House, CA district 1 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| STEINER, MAX | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WEBSTER, AARON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| ZINK, DAVID LEON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| BROWER, DOUGLAS REV | Republican | House, CA district 2 | Challenger or open seat | FEC |
| COULOMBE, CHRIS | Republican | House, CA district 2 | Challenger or open seat | FEC |
| ELIZONDO, DARIAN J | Republican | House, CA district 2 | Challenger or open seat | FEC |
| GEIST, TIMOTHY DAVID | Republican | House, CA district 2 | Challenger or open seat | FEC |
| HAMPSON, BETH | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| RAMIREZ, ARCHIMEDES M.D. | Republican | House, CA district 2 | Challenger or open seat | FEC |
| SMITH, AARON | Republican | House, CA district 2 | Challenger or open seat | FEC |
| SPICER, REBECCA JUNE | CRV | House, CA district 2 | Challenger or open seat | FEC |
| YEE, ROSE PENELOPE LAGOC | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| BISH, CHRISTINE S | Republican | House, CA district 3 | Challenger or open seat | FEC |
| DELLE, PETER J. | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| FEUCHT, J.C. SEAN | Republican | House, CA district 3 | Challenger or open seat | FEC |
| JONES, KERMIT | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| JONES, SCOTT R | Republican | House, CA district 3 | Challenger or open seat | FEC |
| LOGUE, DANIEL | Republican | House, CA district 3 | Challenger or open seat | FEC |
| MORSE, JESSICA | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PALETTA, JASON | Republican | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| BENZEL, JULIANNE ELIZABETH | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BROCK, MATTHEW | Republican | House, CA district 4 | Challenger or open seat | FEC |
| CALDERON, ROZA I | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| ENGDAHL, ANDREW DAVID | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| FRAME, SEAN COLIN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| JONES, JIMIH L | Republican | House, CA district 4 | Challenger or open seat | FEC |
| KENNEDY, BRYNNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KISHINEFF, JASON | None | House, CA district 4 | Challenger or open seat | FEC |
| LAWTON, ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| NEWMAN, SETH | Republican | House, CA district 4 | Challenger or open seat | FEC |
| SHELDON-LONDON, MONIKA LOUISE | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMAS, JACOB ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| WILSON, MARIO CHRISTOPHER | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| DALY, JOLENE | Republican | House, CA district 5 | Challenger or open seat | FEC |
| ESTRADA, JOHN ANTHONY | Republican | House, CA district 5 | Challenger or open seat | FEC |
| GIBLIN, SCOTT | Republican | House, CA district 5 | Challenger or open seat | FEC |
| KASSEL, JASON SETH | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| MAGSIG, NATHAN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MAIN, DAVID NATHAN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| OBERT, KELSTEN C | Republican | House, CA district 5 | Challenger or open seat | FEC |
| SANTAMARIA, CARLOS J | Republican | House, CA district 5 | Challenger or open seat | FEC |
| TYLER, JOHN WESLEY | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| WOZNIAK, STEVE | NOP | House, CA district 5 | Challenger or open seat | FEC |
| BLACK, KARLA | R | House, CA district 6 | Challenger or open seat | FEC |
| BURNETT, KIEMARR SALEH LORD | Republican | House, CA district 6 | Challenger or open seat | FEC |
| DANIELS, BRET | Republican | House, CA district 6 | Challenger or open seat | FEC |
| GORMAN, MARK EDWARD | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| HAISTY, SHERWOOD | Republican | House, CA district 6 | Challenger or open seat | FEC |
| HAMILTON, TAMIKA | Republican | House, CA district 6 | Challenger or open seat | FEC |
| JEDEIKIN, MATHEW RAY | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, DELMA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| KILEY, KEVIN | OTH | House, CA district 6 | Incumbent | FEC |
| LANGFORD, DAVID KEITH JR. | Republican | House, CA district 6 | Challenger or open seat | FEC |
| MCQUAID, JOHN DENNIS | Republican | House, CA district 6 | Challenger or open seat | FEC |
| RICHARDSON, CHRIS | Green | House, CA district 6 | Challenger or open seat | FEC |
| SALEH, KIE'MARR A LORD | COM | House, CA district 6 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| FREMGEN, JAMES LUCAS | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| GRANT, ANDREW | Republican | House, CA district 7 | Challenger or open seat | FEC |
| IVY, JON | Republican | House, CA district 7 | Challenger or open seat | FEC |
| LUNGREN, DANIEL E. | Republican | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| PATTERSON, ROBERT BUZZ | Republican | House, CA district 7 | Challenger or open seat | FEC |
| SEMENENKO, MAX | Republican | House, CA district 7 | Challenger or open seat | FEC |
| BUBSER, CHRISTINE | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CARON, CRAYA CONRADINA | Republican | House, CA district 8 | Challenger or open seat | FEC |
| CONAWAY, ROBERT DEAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| COOK, PAUL | Republican | House, CA district 8 | Incumbent | FEC |
| DOYLE, MARGE | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ELLARS, JAMES ROBERT | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ESMUS, JEFF | NON | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| GOMEZ, BLANCA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| GREEN, JACQUETTA L | W | House, CA district 8 | Challenger or open seat | FEC |
| JOHNSON, DEMNLUS III | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| MATHISEN, PETER G | NPA | House, CA district 8 | Challenger or open seat | FEC |
| O'DONNELL, RONALD | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RECILE, RUDY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| RILEY, CHRISTOPHER | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RUTSCH, EDWIN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| STAAT, JEREMY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| SUDDUTH, CHERYL | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| AMADOR, ANTONIO | Republican | House, CA district 9 | Challenger or open seat | FEC |
| ANDREWS, MARK T | NOP | House, CA district 9 | Challenger or open seat | FEC |
| CHIMA, HARPREET SINGH | Democratic | House, CA district 9 | Challenger or open seat | FEC |
| FENG, KARENA APPLE | Independent | House, CA district 9 | Challenger or open seat | FEC |
| HARDER, JOSH | Democratic | House, CA district 9 | Incumbent | FEC |
| JAFRI, KHALID | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MADISON, JONATHAN | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| MEDINA, ALEXIS | Democratic | House, CA district 9 | Challenger or open seat | FEC |
| PATTI, THOMAS | Republican | House, CA district 9 | Challenger or open seat | FEC |
| SHOEMAKER, JAMES H | Republican | House, CA district 9 | Challenger or open seat | FEC |
| ASLANPOUR, SIMON MICHAEL | Republican | House, CA district 10 | Challenger or open seat | FEC |
| BLEVINS, RYAN | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| DOSSETT, CHARLES | Republican | House, CA district 10 | Challenger or open seat | FEC |
| ELLIOTT, BOB | Republican | House, CA district 10 | Challenger or open seat | FEC |
| GILL, RANJIT | Republican | House, CA district 10 | Challenger or open seat | FEC |
| HARRISON, SEAN | Republican | House, CA district 10 | Challenger or open seat | FEC |
| HOWZE, TED D II | Republican | House, CA district 10 | Challenger or open seat | FEC |
| KERR, MICHAEL | Green | House, CA district 10 | Challenger or open seat | FEC |
| KILBRIDE, EUGENE | Republican | House, CA district 10 | Challenger or open seat | FEC |
| SIGALA, ANGELINA R | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| BLUE, ELIJAH LEWIS | Libertarian | House, CA district 11 | Challenger or open seat | FEC |
| BUTTAR, SHAHID | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| DEL CASTELLO, EVE | Republican | House, CA district 11 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 11 | Challenger or open seat | FEC |
| KERR, MICHAEL ERNEST | Green | House, CA district 11 | Challenger or open seat | FEC |
| LYTTON, ALVA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| PHILLIPS, JEFFREY ALAN | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| SHARMA, NISHA | Republican | House, CA district 11 | Challenger or open seat | FEC |
| VON KRIEG, BIANCA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| BACELAR, AGATHA | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| CURRY, ERIC | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| KAPLAN, GLENN | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | House, CA district 12 | Incumbent | FEC |
| LENTZ, GREG | Republican | House, CA district 12 | Challenger or open seat | FEC |
| LORRAINE, DEANNA | Republican | House, CA district 12 | Challenger or open seat | FEC |
| NUERGE, NED | Republican | House, CA district 12 | Challenger or open seat | FEC |
| ROBERTS, JOSEPH C | Republican | House, CA district 12 | Challenger or open seat | FEC |
| SLAUSON, STEPHEN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| WILSON, ERIC | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| ARBALLO, PHIL | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| BOYD, BRAD | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| DUARTE, JOHN | Republican | House, CA district 13 | Incumbent | FEC |
| GIGLIO, DAVID ANTHONY | Republican | House, CA district 13 | Challenger or open seat | FEC |
| GRAY, ADAM C. | Democratic | House, CA district 13 | Incumbent | FEC |
| MARTINEZ, DIEGO J | Republican | House, CA district 13 | Challenger or open seat | FEC |
| PITERMAN, KONSTANTINE NIKKA-SHER | Republican | House, CA district 13 | Challenger or open seat | FEC |
| ROSARIO-SIGALA, ANGELINA | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| GOODROW, CRISTOS JON | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| HAYDEN, ALISON | Republican | House, CA district 14 | Challenger or open seat | FEC |
| IYER, STEVE | Republican | House, CA district 14 | Challenger or open seat | FEC |
| PETERS, JAMES ANDREW JR | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| SIMARD, LIAM MIGUEL | UN | House, CA district 14 | Challenger or open seat | FEC |
| SINGH, MAJOR | NPA | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| WATTERS, ANDREW G. | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| WONG, THOMAS | Republican | House, CA district 14 | Challenger or open seat | FEC |
| YOUNG, TOM | Republican | House, CA district 14 | Challenger or open seat | FEC |
| BEACH, EMILY | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| BRANDT, DAVID | Independent | House, CA district 15 | Challenger or open seat | FEC |
| CAMPBELL, SAMANTHA | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| CANEPA, DAVID | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| COTA, JACKIE S | Republican | House, CA district 15 | Challenger or open seat | FEC |
| GARRITY, JAMES | UN | House, CA district 15 | Challenger or open seat | FEC |
| GRUNDMANN, DON J | CON | House, CA district 15 | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | House, CA district 15 | Challenger or open seat | FEC |
| MATTAMMAL, GUS | Republican | House, CA district 15 | Challenger or open seat | FEC |
| MULLIN, KEVIN | Democratic | House, CA district 15 | Incumbent | FEC |
| PATAKI, FERENC | NOP | House, CA district 15 | Challenger or open seat | FEC |
| TURNER, DANNY REID | Republican | House, CA district 15 | Challenger or open seat | FEC |
| BROWN, NATHAN K | Republican | House, CA district 16 | Challenger or open seat | FEC |
| COOKINGHAM, KEVIN | Republican | House, CA district 16 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| FOX, RICHARD | Republican | House, CA district 16 | Challenger or open seat | FEC |
| FREDRICH, JOHN KARL | None | House, CA district 16 | Challenger or open seat | FEC |
| HENG, ELIZABETH | Unknown | House, CA district 16 | Challenger or open seat | FEC |
| KUMAR, RISHI | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| OHTAKI, PETER | Republican | House, CA district 16 | Challenger or open seat | FEC |
| RADING, AJWANG | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SOLOMON, BENJAMIN THOMAS | Republican | House, CA district 16 | Challenger or open seat | FEC |
| SORIA, ESMERALDA | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| TANAKA, GREG | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| WILLIAMS, KIM | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| DEHN, JOSEPH W III | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FORBES, STEPHEN | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KATZ, SARAH | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| RAVUL, RAO | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| TANDON, RITESH | Republican | House, CA district 17 | Challenger or open seat | FEC |
| ACEVEDO-ARREGUIN, LUIS ANTONIO | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| HERNANDEZ, PETER | Republican | House, CA district 18 | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTRELVIA | OTH | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| AGUILERA, JUSTIN | Republican | House, CA district 19 | Challenger or open seat | FEC |
| CRUZ-LARA, IGNACIO ISRAEL | Republican | House, CA district 19 | Challenger or open seat | FEC |
| DEITCH, DOUGLAS | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| EPPERSON, DALILA | Republican | House, CA district 19 | Challenger or open seat | FEC |
| GORMAN, JEFF | Republican | House, CA district 19 | Challenger or open seat | FEC |
| JAMES, HANNAH | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| TORRES, IVAN | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| DAVIS, JAMES | Republican | House, CA district 20 | Challenger or open seat | FEC |
| DEWELL, BEN | Independent | House, CA district 20 | Challenger or open seat | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| MACAULEY, JAMES | Republican | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| WOOD, MARISA | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| COX, TERRENCE JOHN (TJ) | Democratic | House, CA district 21 | Incumbent | FEC |
| FLORES-GIBSON, MARTHA ELENA | Republican | House, CA district 21 | Challenger or open seat | FEC |
| GARCIA, ERIC | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| LARA, ANGEL | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| MAHER, MICHAEL A | Republican | House, CA district 21 | Challenger or open seat | FEC |
| MEDEIROS, ADAM THOMAS | Republican | House, CA district 21 | Challenger or open seat | FEC |
| PARKERE, DAVID BRENT | ICD | House, CA district 21 | Challenger or open seat | FEC |
| PARRA, NICOLE | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| STOLL, MATTHEW | Republican | House, CA district 21 | Challenger or open seat | FEC |
| BORGEAS, ANDREAS A | Republican | House, CA district 22 | Challenger or open seat | FEC |
| CAMPOS, LOUIE J | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| CONWAY, CONNIE | Republican | House, CA district 22 | Incumbent | FEC |
| ESTRADA, JOHN ANTHONY | Republican | House, CA district 22 | Challenger or open seat | FEC |
| HENG, ELIZABETH | Republican | House, CA district 22 | Challenger or open seat | FEC |
| HILL, HEMAN L | Independent | House, CA district 22 | Challenger or open seat | FEC |
| HUBBARD, LOURIN | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| MATHYS, CHRIS | Republican | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| OSORIO, BRYAN | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| SALAS, RUDY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| SANCHEZ HERNANDEZ, JORGE | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| TARASEVIC, WILLIAM | UN | House, CA district 22 | Challenger or open seat | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| AMATO, BRUNO | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| BARRO, MARY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| GILL, LOUIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MANGONE, KIM | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MARSHALL, DEREK | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| OBERNOLTE, JAY | Republican | House, CA district 23 | Incumbent | FEC |
| WILSON, KURTIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CALDWELL, JAMES ANDREW | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| FAREED, JUSTIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| FRANKENFIELD, JEFF | Independent | House, CA district 24 | Challenger or open seat | FEC |
| GALLEGLY, ELTON | Republican | House, CA district 24 | Challenger or open seat | FEC |
| KENNEDY, ANGELA | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| WESLANDER QUAID, MICHELE | NPA | House, CA district 24 | Challenger or open seat | FEC |
| WOODY, MICHAEL ERIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| YOUNG, KENNETH | Independent | House, CA district 24 | Challenger or open seat | FEC |
| YOUNG, KENNETH | Independent | House, CA district 24 | Challenger or open seat | FEC |
| BELLINGHAM, CHRIS | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| ELIZE, GETRO | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| HAWKINS, BRIAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| HILL, KATHERINE LAUREN | Democratic | House, CA district 25 | Incumbent | FEC |
| JENKS, KENNETH | Republican | House, CA district 25 | Challenger or open seat | FEC |
| KNIGHT, STEVE | Republican | House, CA district 25 | Incumbent | FEC |
| LOZANO, DAVID | Republican | House, CA district 25 | Challenger or open seat | FEC |
| LUEVANOS, RUTH | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| MCKEON, HOWARD P "BUCK" | Republican | House, CA district 25 | Challenger or open seat | FEC |
| NAZANIN, RHODA | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| REISS, JONATHAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| STRANSKY, DARA FAYE | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| STRICKLAND, ANTHONY A | Republican | House, CA district 25 | Challenger or open seat | FEC |
| THAKUR, ALBERT 'BURT' | Republican | House, CA district 25 | Challenger or open seat | FEC |
| TRUMAN, CECILIA | Republican | House, CA district 25 | Challenger or open seat | FEC |
| TYSON, BRIAN | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UNDERWOOD JACOBS, ANGELA | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UYGUR, CENK | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALDEZ-ORTEGA, ANIBAL | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALLADARES, SUZETTE MARTINEZ | Republican | House, CA district 25 | Challenger or open seat | FEC |
| AUSTIN, PETER DUMOND | Independent | House, CA district 26 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| GOODMAN, DAVID | Independent | House, CA district 26 | Challenger or open seat | FEC |
| GORELL, JEFF | Republican | House, CA district 26 | Challenger or open seat | FEC |
| JACOBS, MATTHEW | Republican | House, CA district 26 | Challenger or open seat | FEC |
| MIKHAIL, FADDE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| TAYLOR, PAUL N | Republican | House, CA district 26 | Challenger or open seat | FEC |
| WILSON, DANIEL | Independent | House, CA district 26 | Challenger or open seat | FEC |
| CARDENAS, BEATRICE FOR | Republican | House, CA district 27 | Challenger or open seat | FEC |
| GARCIA, MICHAEL | Republican | House, CA district 27 | Incumbent | FEC |
| JORDAN, ALI | None | House, CA district 27 | Challenger or open seat | FEC |
| PIERCE, MARK | Republican | House, CA district 27 | Challenger or open seat | FEC |
| PREBOLA, CRYSTAL | Republican | House, CA district 27 | Challenger or open seat | FEC |
| QUARTEY, JOHN QUAYE II | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| RUDNICK, FREDERICK D | Republican | House, CA district 27 | Challenger or open seat | FEC |
| SMITH, CHRISTY | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| WITT, BRYAN | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| AGBEDE, AKINYEMI | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| ANDERSON, CHAD D | NOP | House, CA district 28 | Challenger or open seat | FEC |
| BARBOSA, JENNIFER | Independent | House, CA district 28 | Challenger or open seat | FEC |
| BRAUN, JONATHAN | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| CARONNA, DOROTHY | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| DEPAOLIS, GIULIANO GIOVANNI | NPA | House, CA district 28 | Challenger or open seat | FEC |
| EARLY, ERIC | Republican | House, CA district 28 | Challenger or open seat | FEC |
| HALLMAN, WESLEY PHILLIP | Republican | House, CA district 28 | Challenger or open seat | FEC |
| LEWIS, KERRY B | Republican | House, CA district 28 | Challenger or open seat | FEC |
| MALKI, DANIEL | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| MARTINEZ, SELENA ROSE | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| NALBANDIAN, JOHNNY | Republican | House, CA district 28 | Challenger or open seat | FEC |
| SHAYANI, PAYAM MARK | Independent | House, CA district 28 | Challenger or open seat | FEC |
| SOLIS, LENORE | Republican | House, CA district 28 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| CARRANZA, MARGARITA MARIA | Republican | House, CA district 29 | Challenger or open seat | FEC |
| DUENAS, ANGELICA MARIA | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| MIRANDA, ANDY | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| BEN-DOV, NAORA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| BERINA, COURTNEY JAMES | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| CARROLL, BRIAN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| DORAZIO, ROYCE | NPA | House, CA district 30 | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| GENOVESE, SAL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| GIPSON, PATRICK LEE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| KENNEDY, RONDA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| MEURER, WILLIAM | Green | House, CA district 30 | Challenger or open seat | FEC |
| MURPHY, SUSAN JENNIFER | Republican | House, CA district 30 | Challenger or open seat | FEC |
| NALBANDIAN, JOHNNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| PUDLO, G MAEBE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| RODRIGUEZ, TONY | Independent | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| ZUNIGA, PALOMA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| AHMED, KAISAR | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHABOT, PAUL R | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CHING, ERIC J | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CISNEROS, GILBERT | Democratic | House, CA district 31 | Incumbent | FEC |
| COVELL, CAROLYN ELIZABETH | Republican | House, CA district 31 | Challenger or open seat | FEC |
| DE LUCA, ROCCO | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| DUFFY, JENNIFER | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GIBBONEY, AGNES | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GUTIERREZ, REX DALE ALEXANDER | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MARTINEZ, DANIEL JOSE BOCIC | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MILLER, GARY G | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| WEEMS, EUGENE | W | House, CA district 31 | Challenger or open seat | FEC |
| AAZAMI, SHERVIN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| GONZALES, EMANUEL LAWRENCE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| HERNANDEZ, ROGER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KASHIFALGHITA, MESHAL 'KASH' | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KHAN, MUMIN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LUTZ, MARY ANN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| MADRIGAL, RAUL ALI | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| POTELL, JASON RANDOLPH | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RHODES, AARIKA SAMONE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SCOTT, JOSHUA | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| VOLOTZKY, LUCIE LAPOINTE | Republican | House, CA district 32 | Challenger or open seat | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| BRADLEY, JAMES P. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| PORTER, JOHN MARK | W | House, CA district 33 | Challenger or open seat | FEC |
| RAPHAEL, PATRICK JEAN | Republican | House, CA district 33 | Challenger or open seat | FEC |
| RICHTER, ERNEST | Republican | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| AHN, ROBERT LEE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| ALVAREZ, SIMON MARK | Republican | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| CABILDO, MARIA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARMONA, ARTURO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GOMEZ, JIMMY | Democratic | House, CA district 34 | Incumbent | FEC |
| HERNANDEZ, SARA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID YUNG HO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MEJIA, KENNETH | Green | House, CA district 34 | Challenger or open seat | FEC |
| PITTMAN, SHANNEL | Green | House, CA district 34 | Challenger or open seat | FEC |
| SCOTT, KEANAKAY | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| VONBUCK, CLIFTON RIO TORRADO | Republican | House, CA district 34 | Challenger or open seat | FEC |
| CARACAMO, RAFAEL | Republican | House, CA district 35 | Challenger or open seat | FEC |
| CARGILE, MIKE | Republican | House, CA district 35 | Challenger or open seat | FEC |
| ERBST, BOB | Republican | House, CA district 35 | Challenger or open seat | FEC |
| STEVENS, LLOYD ALEXANDER | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| BATTERSBY, MITCHELL A | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| COLLINS, JOE E III | Republican | House, CA district 36 | Challenger or open seat | FEC |
| CRUZ, ERIN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GATES, DERRICK ROLLIN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GIBSON, JAMES FRANCIS | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GLICK, JESSE FALLON | Republican | House, CA district 36 | Challenger or open seat | FEC |
| HAKAMI, ARIANA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| JENKINS, STORM | Republican | House, CA district 36 | Challenger or open seat | FEC |
| JESUELE, MATTHEW VINCENT | Independent | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| OBRIEN, COLIN KILPATRICK | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| RAGGE, CLAIRE | Republican | House, CA district 36 | Challenger or open seat | FEC |
| RUIZ, RAUL | Republican | House, CA district 36 | Challenger or open seat | FEC |
| TOOMIM, LEAH MELISSA | Republican | House, CA district 36 | Challenger or open seat | FEC |
| UPCHURCH, ANDREW | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| VAZQUEZ, DANIEL BENETEZ | AIC | House, CA district 36 | Challenger or open seat | FEC |
| BASS, KAREN | Democratic | House, CA district 37 | Incumbent | FEC |
| CHAMPION, CHRIS | Republican | House, CA district 37 | Challenger or open seat | FEC |
| FEDALIZO, BALTAZAR | Republican | House, CA district 37 | Challenger or open seat | FEC |
| HILL, STEVE | NPA | House, CA district 37 | Challenger or open seat | FEC |
| KAMLAGER-DOVE, SYDNEY | Democratic | House, CA district 37 | Incumbent | FEC |
| LEE, DANIEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| MENDOZA, SANDRA | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| PERRY, JAN | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| SHURE, MICHAEL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| SILVERA, AARON ALBERT | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| WEBBER, ERROL | Republican | House, CA district 37 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 38 | Challenger or open seat | FEC |
| ANI, SYLVESTER UGONNA JR. | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| JONES, PAUL IRVING REVEREND | Republican | House, CA district 38 | Challenger or open seat | FEC |
| MOREIRA, ELIZABETH | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| SAREGA, JOHN | Republican | House, CA district 38 | Challenger or open seat | FEC |
| TOLAR, MICHAEL | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| AUZENNE, ORAY | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| COX, STEVE | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CULLUM, JOHN J | Republican | House, CA district 39 | Challenger or open seat | FEC |
| LEE, HERBERT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LIBERATORE, PHIL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| MINNELLA, JOHN LORDSAL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| MORENO, TONY | Republican | House, CA district 39 | Challenger or open seat | FEC |
| PETERSON, ARTHUR LAVERNE | Republican | House, CA district 39 | Challenger or open seat | FEC |
| ROYCE, ED | Republican | House, CA district 39 | Incumbent | FEC |
| SPINNEY, BILL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| SUAREZ, EMMANUEL L | Republican | House, CA district 39 | Challenger or open seat | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| CORTES BARRAGAN, RODOLFO | Green | House, CA district 40 | Challenger or open seat | FEC |
| DELGADO, ANTONIO | Republican | House, CA district 40 | Challenger or open seat | FEC |
| FELIX, ANTHONY JR. | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| KIM, YOUNG | Republican | House, CA district 40 | Incumbent | FEC |
| MAHMOOD, ASIF | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| METZGER, ORION PAIGE | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| RATHS, GREG | Republican | House, CA district 40 | Challenger or open seat | FEC |
| RIVERA, JUAN LUIS | Libertarian | House, CA district 40 | Challenger or open seat | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| TAURUS, NICHOLAS | Republican | House, CA district 40 | Challenger or open seat | FEC |
| CLEMMONS, MITCHELL | Republican | House, CA district 41 | Challenger or open seat | FEC |
| KURANI, SHRINA | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| LEWIS, JERRY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| LUCIO, JOHN MICHAEL | Republican | House, CA district 41 | Challenger or open seat | FEC |
| MELENDEZ, MELISSA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| MOSELY, BRANDON | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| NEVENIC, ANNA | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| ROLLINS, WILL | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SMITH, AJA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WILLIAMS, GRACE I | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| BELTRAN, JOAQUIN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BURLEY, BRIAN J | Republican | House, CA district 42 | Challenger or open seat | FEC |
| CASTILLO, SAUL | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| FLORES, JULIO CESAR | Green | House, CA district 42 | Challenger or open seat | FEC |
| FRITZ, DAVID | Republican | House, CA district 42 | Challenger or open seat | FEC |
| GARCIA, CRISTINA | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| GARCIA, ROBERT | Democratic | House, CA district 42 | Incumbent | FEC |
| LOPEZ, JAZMIN NICOLE | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| MARSTON, REGINA L | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| MATHEWS, PETER | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| O'MARA, WILLIAM EDWARD IV | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| PHAM, LONG | Republican | House, CA district 42 | Challenger or open seat | FEC |
| RIOS, ANGEL ANTHONY | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| SUMMERVILLE, WILLIAM M. | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| KEYS, REGINALD FERNANDO | UN | House, CA district 43 | Challenger or open seat | FEC |
| MONESTIME, JEAN M. | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| NAVARRO, OMAR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| PRATT, EVETTE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| WILLIAMS, STEVE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| ZUNIGA, MIGUEL | Green | House, CA district 43 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| GRIFFIN, MORRIS F | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| JOYA, ANALILIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| NETTLES, AARON | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| CHEN, JAY | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| COLLINS, SHAWN | Republican | House, CA district 45 | Challenger or open seat | FEC |
| DALE, TERRY | Republican | House, CA district 45 | Challenger or open seat | FEC |
| FORDE, BRIAN | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FURIN, RHONDA DEE | Republican | House, CA district 45 | Challenger or open seat | FEC |
| HANCOCK, ADAM M | Republican | House, CA district 45 | Challenger or open seat | FEC |
| HANCOCK, ADAM MATTHEW | Republican | House, CA district 45 | Challenger or open seat | FEC |
| RATHS, GREGORY GERARD | Republican | House, CA district 45 | Challenger or open seat | FEC |
| RICHTER, JENNIFER | Republican | House, CA district 45 | Challenger or open seat | FEC |
| STEEL, MICHELLE | Republican | House, CA district 45 | Incumbent | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| GONZALES, CHRISTOPHER | Republican | House, CA district 46 | Challenger or open seat | FEC |
| NGUYEN, MIKE | Republican | House, CA district 46 | Challenger or open seat | FEC |
| ORTEGA, MICHAEL | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| ROCHA JR., FELIX | Republican | House, CA district 46 | Challenger or open seat | FEC |
| RUSHMAN, ED | None | House, CA district 46 | Challenger or open seat | FEC |
| RUVALCABA, JESUS | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| WATERS, JAMES STEVENS | Republican | House, CA district 46 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CLIFFORD, DAVID | Republican | House, CA district 47 | Challenger or open seat | FEC |
| ERNST, ROLAND | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| GRIFFITH, WILLIAM | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| LYONS, MICHELLE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| MATHEWS, E. PETER | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| MCLEOD, JALEN DUPREE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| MOUA, SOU | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PHAN WEST, AMY | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PORTER, KATHERINE | Democratic | House, CA district 47 | Incumbent | FEC |
| ROUDA, HARLEY E JR | Democratic | House, CA district 47 | Incumbent | FEC |
| VEAZEY, PETER D | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WEBBER, ERROL | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WEST, AMY PHAN | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WHALLON, ANDREW | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BALASINSKI, KRZYSZTOF CHRIS | Independent | House, CA district 48 | Challenger or open seat | FEC |
| CAMPA-NAJJAR, AMMAR | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| COX, CHRISTOPHER | Republican | House, CA district 48 | Challenger or open seat | FEC |
| HOULAHAN, STEPHEN WILLIAM | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| KOTICK, MICHAEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| MURILLO, TAMI LE | Republican | House, CA district 48 | Challenger or open seat | FEC |
| OATMAN, LAURA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| RASCON, MATTHEW G. | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ROHRABACHER, DANA | Republican | House, CA district 48 | Incumbent | FEC |
| SANDMAN, SHASTINA | Republican | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHUESLER, JOHN THOMAS | Republican | House, CA district 48 | Challenger or open seat | FEC |
| STURGES, CALEB SAMUEL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| BARTLETT, LISA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ELIZABETH, ANNE | Republican | House, CA district 49 | Challenger or open seat | FEC |
| GASPAR, KRISTIN | Republican | House, CA district 49 | Challenger or open seat | FEC |
| LEVIN, MIKE | Democratic | House, CA district 49 | Incumbent | FEC |
| MARYOTT, BRIAN L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ONEIL, JOSIAH | Republican | House, CA district 49 | Challenger or open seat | FEC |
| RODRIGUEZ, CHRISTOPHER | Republican | House, CA district 49 | Challenger or open seat | FEC |
| SCHMITT, MICHAEL D | Republican | House, CA district 49 | Challenger or open seat | FEC |
| SMALLEY, NADIA BAHIA | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| TAYLOR, RENEE | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ABED, SAM | Republican | House, CA district 50 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 50 | Challenger or open seat | FEC |
| BAROSAY, MARI | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| BILASH, TIMOTHY DANIEL M.D. | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| CHIDDICK, DAVID | Republican | House, CA district 50 | Challenger or open seat | FEC |
| DUNCAN, HUNTER SPEARS | Republican | House, CA district 50 | Challenger or open seat | FEC |
| GUSTAFSON, COREY | Republican | House, CA district 50 | Challenger or open seat | FEC |
| HORVATH, HELEN LILI | UN | House, CA district 50 | Challenger or open seat | FEC |
| HUNTER, DUNCAN D | Republican | House, CA district 50 | Incumbent | FEC |
| JAHN, LUCINDA KWH | NOP | House, CA district 50 | Challenger or open seat | FEC |
| JONES, BRIAN W | Republican | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| OTA, HENRY ALAN | FS | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| ROCHA, JOSEPH C. | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| RYANS, JERLILIA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| SCHINDLER, ADAM | Independent | House, CA district 50 | Challenger or open seat | FEC |
| TAITANO, KYLIE | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| WELLS, WILLIAM DANIEL | Republican | House, CA district 50 | Challenger or open seat | FEC |
| WILSKE, LARRY A | Republican | House, CA district 50 | Challenger or open seat | FEC |
| CAPLAN, STAN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| CORTES, JOSE MARCOS | PFP | House, CA district 51 | Challenger or open seat | FEC |
| DE GANNA, BENJAMIN | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| HIDALGO, JUAN M SGTMAJ JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| HOLMAN LEAK, BARRETT | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| JACOBS, SARA | Democratic | House, CA district 51 | Incumbent | FEC |
| MITCHELL, KEVIN | NOP | House, CA district 51 | Challenger or open seat | FEC |
| WELLS, BILL D. | Republican | House, CA district 51 | Challenger or open seat | FEC |
| BAILEY, RICHARD | Republican | House, CA district 52 | Challenger or open seat | FEC |
| BILBRAY, BRIAN PHILLIP | Republican | House, CA district 52 | Challenger or open seat | FEC |
| DEBELLO, JAMES | Republican | House, CA district 52 | Challenger or open seat | FEC |
| GEFFENEY, TYLER | Republican | House, CA district 52 | Challenger or open seat | FEC |
| HOSANNA, JUDAH | Republican | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| VAZQUEZ, JOAQUIN | Democratic | House, CA district 52 | Challenger or open seat | FEC |
| WEIR, CHARLES STEVEN | Republican | House, CA district 52 | Challenger or open seat | FEC |
| DAVIS, SUSAN A. | Democratic | House, CA district 53 | Incumbent | FEC |
| FOUNTAIN, JOSEPH | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| GOMEZ, GEORGETTE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| KUTNER, ERIC ROGER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| RAMON CABALLERO, JOSE IIII | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| SHARMA, PETER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| STODDARD, CHRISTOPHER | Republican | House, CA district 53 | Challenger or open seat | FEC |
| WONG, TOM K | Democratic | House, CA district 53 | Challenger or open seat | FEC |
2019–2020 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| AGBEDE, AKINYEMI | Democratic | Senate, CA | Challenger or open seat | FEC |
| GRUNDMANN, DON J. | NOP | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ADAMS, DONALD R | Republican | Senate, CA | Challenger or open seat | FEC |
| BHUMITRA, ARUN K | Republican | Senate, CA | Challenger or open seat | FEC |
| BRADFORD, DAPHNE | Independent | Senate, CA | Challenger or open seat | FEC |
| BRADLEY, JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| BRENNAN, CHRISTOPHER | Democratic | Senate, CA | Challenger or open seat | FEC |
| CARROLL, JERRY LEON | OTH | Senate, CA | Challenger or open seat | FEC |
| CRUZ, ERIN | Republican | Senate, CA | Challenger or open seat | FEC |
| DE LA FUENTE, ROQUE ROCKY | Republican | Senate, CA | Challenger or open seat | FEC |
| DE LEON, KEVIN | Democratic | Senate, CA | Challenger or open seat | FEC |
| EISEN, MICHAEL | Independent | Senate, CA | Challenger or open seat | FEC |
| FEINSTEIN, DIANNE | Democratic | Senate, CA | Incumbent | FEC |
| GHOSH, RASH BIHARI | NOP | Senate, CA | Challenger or open seat | FEC |
| GUTIERREZ, PAUL ANTHONY | Republican | Senate, CA | Challenger or open seat | FEC |
| HARRIS, EUGENE PATTERSON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HARRIS, KAMALA D | Democratic | Senate, CA | Incumbent | FEC |
| HARTSON, ALISON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HERLE, DHRUVA | Democratic | Senate, CA | Challenger or open seat | FEC |
| HITSON 255 KINDER AVE, KYLE DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| KALEMKARIAN, TIMOTHY CHARLES | Republican | Senate, CA | Challenger or open seat | FEC |
| KEIVAULQE AUTIAMEINEIRE, FEPBRINA ESTR | OTH | Senate, CA | Challenger or open seat | FEC |
| LANCONA, CAREN DIANNA | Republican | Senate, CA | Challenger or open seat | FEC |
| LAWS, JERRY JOSEPH | Republican | Senate, CA | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | Senate, CA | Challenger or open seat | FEC |
| LITTLE, PATRICK | Republican | Senate, CA | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | Senate, CA | Challenger or open seat | FEC |
| LUCERO, ROBERT GEORGE JR | Republican | Senate, CA | Challenger or open seat | FEC |
| MCGURR, MATTHEW E. | Democratic | Senate, CA | Challenger or open seat | FEC |
| MELENDEZ, JOHN | Democratic | Senate, CA | Challenger or open seat | FEC |
| PADILLA, ALEX | Democratic | Senate, CA | Incumbent | FEC |
| PARKER, JOHN | W | Senate, CA | Challenger or open seat | FEC |
| REID, DERRICK MICHAEL | Libertarian | Senate, CA | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SCHRADER, STEPHEN JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| SERGENT, MATTHEW | Democratic | Senate, CA | Challenger or open seat | FEC |
| SHI, LING LING | NOP | Senate, CA | Challenger or open seat | FEC |
| STOKES, STEVE | Democratic | Senate, CA | Challenger or open seat | FEC |
| THACH, MARY | None | Senate, CA | Challenger or open seat | FEC |
| URBINA, ERIK | Republican | Senate, CA | Challenger or open seat | FEC |
| WHITNEY, ELLERTON PRATT MARK III | Libertarian | Senate, CA | Challenger or open seat | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Independent | Senate, CA | Challenger or open seat | FEC |
| ZHOU, LIJUN (LILY) | Republican | Senate, CA | Challenger or open seat | FEC |
| ZIESING, MICHAEL VINCENT | Green | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| NWADIKE, KENNETH E JR | Democratic | House, CA | Challenger or open seat | FEC |
| CATALANO, THOMAS | OTH | House, CA district 1 | Challenger or open seat | FEC |
| CIENKUS, JASON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| DENNEY, AUDREY L | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| JORDAN, LAWRENCE WHITING | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| LETOURNEAU, JOSEPH IV | Independent | House, CA district 1 | Challenger or open seat | FEC |
| LYDON, ROB | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MARTINEZ, SELENA ROSE | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| SAGOO, GURPINDER SINGH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| BRADLEY, MELISSA | Green | House, CA district 2 | Challenger or open seat | FEC |
| CAFFREY, ANDY | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| COPPOCK, CHARLES WALLACE | OTH | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| MANGAS MONIZ, RACHEL OLIVIA | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| MONIZ, RACHEL | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| SAULSBURY, PAUL W | Republican | House, CA district 2 | Challenger or open seat | FEC |
| WALK, ANTONIO LOPEZ | Independent | House, CA district 2 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| BISH, CHRISTINE S | Republican | House, CA district 3 | Challenger or open seat | FEC |
| FEUCHT, J.C. SEAN | Republican | House, CA district 3 | Challenger or open seat | FEC |
| LOGUE, DANIEL | Republican | House, CA district 3 | Challenger or open seat | FEC |
| MORSE, JESSICA | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PUETT, KEVIN | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| SCHAUPP, CHARLES EUGENE | Republican | House, CA district 3 | Challenger or open seat | FEC |
| VAN DYKE, GREGORY | Republican | House, CA district 3 | Challenger or open seat | FEC |
| BENZEL, JULIANNE ELIZABETH | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BYERS, JAMIE | Republican | House, CA district 4 | Challenger or open seat | FEC |
| CALDERON, ROZA I | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| FRAME, SEAN COLIN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KENNEDY, BRYNNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KISHINEFF, JASON | None | House, CA district 4 | Challenger or open seat | FEC |
| LAWTON, ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMAS, JACOB ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| WHITE, MITCHELL | Republican | House, CA district 4 | Challenger or open seat | FEC |
| WILSON, MARIO CHRISTOPHER | Republican | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| GIBLIN, SCOTT | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| SANTAMARIA, CARLOS J | Republican | House, CA district 5 | Challenger or open seat | FEC |
| TYLER, JOHN WESLEY | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| EMARD, BENJAMIN | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| HAISTY, SHERWOOD | Republican | House, CA district 6 | Challenger or open seat | FEC |
| HAMILTON, TAMIKA | Republican | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, JRMAR | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| LUTALO, RONALD MUWEREZA SR | Republican | House, CA district 6 | Challenger or open seat | FEC |
| RICHARDSON, CHRIS | Green | House, CA district 6 | Challenger or open seat | FEC |
| SALEH, KIE'MARR A LORD | COM | House, CA district 6 | Challenger or open seat | FEC |
| SERETSKIY, YURIY | NON | House, CA district 6 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| BURDICK, JEFF | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| GRANT, ANDREW | Republican | House, CA district 7 | Challenger or open seat | FEC |
| IVY, JON | Republican | House, CA district 7 | Challenger or open seat | FEC |
| KIPUKE, OMBA | Republican | House, CA district 7 | Challenger or open seat | FEC |
| LUNGREN, DANIEL E. | Republican | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| PATTERSON, ROBERT BUZZ | Republican | House, CA district 7 | Challenger or open seat | FEC |
| RICHARDSON, ROBERT CHRISTIAN | Green | House, CA district 7 | Challenger or open seat | FEC |
| BUBSER, CHRISTINE | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CARON, CRAYA CONRADINA | Republican | House, CA district 8 | Challenger or open seat | FEC |
| CASTILLO, SAUL JR | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CONAWAY, ROBERT DEAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CONOVER, RODNEY LEE | Republican | House, CA district 8 | Challenger or open seat | FEC |
| COOK, PAUL | Republican | House, CA district 8 | Incumbent | FEC |
| DONNELLY, TIMOTHY M. | Republican | House, CA district 8 | Challenger or open seat | FEC |
| DOYLE, MARGE | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ELLARS, JAMES ROBERT | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| ESMUS, JEFF | NON | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| GOMEZ, BLANCA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| GREEN, JACQUETTA L | W | House, CA district 8 | Challenger or open seat | FEC |
| LAWS, JERRY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| LOVATO, DESTINY WRAY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| MATHISEN, PETER G | NPA | House, CA district 8 | Challenger or open seat | FEC |
| O'DONNELL, RONALD | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RAMIREZ-DEAN, RITA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| STAAT, JEREMY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| WHITEHEAD, JUSTIN DAVID | Republican | House, CA district 8 | Challenger or open seat | FEC |
| AMADOR, ANTONIO | Republican | House, CA district 9 | Challenger or open seat | FEC |
| HARDER, JOSH | Democratic | House, CA district 9 | Incumbent | FEC |
| LIVENGOOD, MARLA | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MARTINEK, WILLIAM CHARLES | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| MEDINA, ALEXIS | Democratic | House, CA district 9 | Challenger or open seat | FEC |
| BATTISTA, LISA | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| BLEVINS, RYAN | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| DOSSETT, CHARLES | Republican | House, CA district 10 | Challenger or open seat | FEC |
| EGGMAN, MICHAEL RAY | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| ELLIOTT, BOB | Republican | House, CA district 10 | Challenger or open seat | FEC |
| HOWZE, TED D II | Republican | House, CA district 10 | Challenger or open seat | FEC |
| LIVENGOOD, MARLA | Republican | House, CA district 10 | Challenger or open seat | FEC |
| MADUENO, VIRGINIA | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| SNOVER, TERRA EVA | Independent | House, CA district 10 | Challenger or open seat | FEC |
| SOUSA LIVENGOOD, MARLA | Republican | House, CA district 10 | Challenger or open seat | FEC |
| BUTTAR, SHAHID | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| GOEHRING, BRAD | Republican | House, CA district 11 | Challenger or open seat | FEC |
| KERR, MICHAEL ERNEST | Green | House, CA district 11 | Challenger or open seat | FEC |
| LYTTON, ALVA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| SHARMA, NISHA | Republican | House, CA district 11 | Challenger or open seat | FEC |
| BACELAR, AGATHA | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| GALLAGHER, TOM | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| JAFFE, STEPHEN R | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | House, CA district 12 | Incumbent | FEC |
| LORRAINE, DEANNA | Republican | House, CA district 12 | Challenger or open seat | FEC |
| ARBALLO, PHIL | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| PITERMAN, KONSTANTINE NIKKA-SHER | Republican | House, CA district 13 | Challenger or open seat | FEC |
| WELLS, LAURA | Green | House, CA district 13 | Challenger or open seat | FEC |
| GOODROW, CRISTOS JON | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| HAYDEN, ALISON | Republican | House, CA district 14 | Challenger or open seat | FEC |
| PETEL, RAN S | Republican | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| TAYLOR, ERIC | Independent | House, CA district 14 | Challenger or open seat | FEC |
| WAHAB, AISHA | Democratic | House, CA district 14 | Challenger or open seat | FEC |
| CAMPBELL, SAMANTHA | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| GRUNDMANN, DON J | CON | House, CA district 15 | Challenger or open seat | FEC |
| INTAL, AUSTIN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| LIU, PETER Y | Republican | House, CA district 15 | Challenger or open seat | FEC |
| PETERS, RUDY PETERS | Republican | House, CA district 15 | Challenger or open seat | FEC |
| PHAN, TUAN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| TURNER, DANNY REID | Republican | House, CA district 15 | Challenger or open seat | FEC |
| VITAL, JACOB | Independent | House, CA district 15 | Challenger or open seat | FEC |
| WIECKOWSKI, ROBERT | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| COOKINGHAM, KEVIN | Republican | House, CA district 16 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| HENG, ELIZABETH | Unknown | House, CA district 16 | Challenger or open seat | FEC |
| KUMAR, RISHI | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SORIA, ESMERALDA | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| TANAKA, GREG | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| WILLIAMS, KIM | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| COHEN, RONALD H | Republican | House, CA district 17 | Challenger or open seat | FEC |
| DEHN, JOSEPH W III | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FORBES, STEPHEN | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KATZ, SARAH | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| TANDON, RITESH | Republican | House, CA district 17 | Challenger or open seat | FEC |
| FOX, RICHARD B | Republican | House, CA district 18 | Challenger or open seat | FEC |
| FOX, RICHARD B | Republican | House, CA district 18 | Challenger or open seat | FEC |
| GOODWYN, BOB | Libertarian | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| REYNOLDS, PHIL | Republican | House, CA district 18 | Challenger or open seat | FEC |
| AGUILERA, JUSTIN | Republican | House, CA district 19 | Challenger or open seat | FEC |
| CRUZ-LARA, IGNACIO ISRAEL | Republican | House, CA district 19 | Challenger or open seat | FEC |
| ESTAVILLO, ERIK | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| GORMAN, JEFF | Republican | House, CA district 19 | Challenger or open seat | FEC |
| ISSAQ, ABDULLAH | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| JAMES, HANNAH | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| MALLORY, JASON | NOP | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| TORRES, IVAN | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| BOLA?OS SCOW, ADAM | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| DAVIS, JAMES | Republican | House, CA district 20 | Challenger or open seat | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| KABAT, RONALD P. | NPA | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| COX, TERRENCE JOHN (TJ) | Democratic | House, CA district 21 | Incumbent | FEC |
| DE LA FUENTE, RICARDO | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| DE LA FUENTE, ROQUE "ROCKY" | Republican | House, CA district 21 | Challenger or open seat | FEC |
| GARCIA, ERIC | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| HUERTA, EMILIO J. | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| PARRA, NICOLE | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| BLIATOUT, BOBBY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| CAMPOS, LOUIE J | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| FRANCO, RICARDO JOSE | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| HILL, HEMAN L | Independent | House, CA district 22 | Challenger or open seat | FEC |
| JANZ, ANDREW | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| LEE, OTTO | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| REZVANI SARABI, AMIR DARYOUSH | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| SANCHEZ HERNANDEZ, JORGE | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| BARRO, MARY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MANGONE, KIM | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MATTA, TATIANA | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| OBERNOLTE, JAY | Republican | House, CA district 23 | Incumbent | FEC |
| REED, WENDY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| WILSON, KURTIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| CALDWELL, JAMES ANDREW | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| FAREED, JUSTIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| GALLEGLY, ELTON | Republican | House, CA district 24 | Challenger or open seat | FEC |
| KENNEDY, ANGELA | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| WOODY, MICHAEL ERIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| YOUNG, KENNETH SIDNEY | Independent | House, CA district 24 | Challenger or open seat | FEC |
| CAFORIO, BRYAN | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| COOPER, OTIS LEE | NOP | House, CA district 25 | Challenger or open seat | FEC |
| COOPER, ROBERT | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| CRIPE, MARK | Republican | House, CA district 25 | Challenger or open seat | FEC |
| ELIZE, GETRO | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| FARRELL-SMITH, KELAN JOHN | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| HILL, KATHERINE LAUREN | Democratic | House, CA district 25 | Incumbent | FEC |
| JENKS, KENNETH | Republican | House, CA district 25 | Challenger or open seat | FEC |
| KNIGHT, STEVE | Republican | House, CA district 25 | Incumbent | FEC |
| LACKEY, COURTNEY | Republican | House, CA district 25 | Challenger or open seat | FEC |
| LOZANO, DAVID | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MASTERMAN-SMITH, MIKE | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| MCKEON, HOWARD P "BUCK" | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MERCURI, DANIEL | Republican | House, CA district 25 | Challenger or open seat | FEC |
| PAPADOPOULOS, GEORGE | Republican | House, CA district 25 | Challenger or open seat | FEC |
| PATRON, CHARLES MICHAEL | Republican | House, CA district 25 | Challenger or open seat | FEC |
| PHOENIX, JESS | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| SMITH, CHRISTOPHER C | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| STRICKLAND, ANTHONY A | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UNDERWOOD JACOBS, ANGELA | Republican | House, CA district 25 | Challenger or open seat | FEC |
| UYGUR, CENK | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALDEZ-ORTEGA, ANIBAL | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VALLADARES, SUZETTE MARTINEZ | Republican | House, CA district 25 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| BURUM, JEFFREY DAVID MAJ (RET) | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GOLDEN, CRYSTAL MARIE | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GORELL, JEFF | Republican | House, CA district 26 | Challenger or open seat | FEC |
| NELSON, JOHN | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| PETRIS, ENRIQUE | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| SABATO, ANTONIO | Republican | House, CA district 26 | Challenger or open seat | FEC |
| SALAS, ROBERT LAMBERT | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| WILSON, DANIEL | Independent | House, CA district 26 | Challenger or open seat | FEC |
| CARDENAS, BEATRICE FOR | Republican | House, CA district 27 | Challenger or open seat | FEC |
| DALY, CHRISTIAN | NOP | House, CA district 27 | Challenger or open seat | FEC |
| GARCIA, MICHAEL | Republican | House, CA district 27 | Incumbent | FEC |
| PREBOLA, CRYSTAL | Republican | House, CA district 27 | Challenger or open seat | FEC |
| RUDNICK, FREDERICK D | Republican | House, CA district 27 | Challenger or open seat | FEC |
| SMITH, CHRISTY | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| WITT, BRYAN | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| AGBEDE, AKINYEMI | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| ANDERSON, CHAD D | NOP | House, CA district 28 | Challenger or open seat | FEC |
| BARBOSA, JENNIFER | Independent | House, CA district 28 | Challenger or open seat | FEC |
| BODELL, WILLIAM | Republican | House, CA district 28 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| EARLY, ERIC | Republican | House, CA district 28 | Challenger or open seat | FEC |
| HOLLIS, JON | Republican | House, CA district 28 | Challenger or open seat | FEC |
| MANOOGIAN, ARA KHACHIG | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| MARKOS, JUAN | NPA | House, CA district 28 | Challenger or open seat | FEC |
| MARTINEZ, CHRISTOPHER EDGARDO | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| MARTINEZ, SELENA ROSE | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| NALBANDIAN, JOHNNY | Republican | House, CA district 28 | Challenger or open seat | FEC |
| SHAYANI, PAYAM MARK | Independent | House, CA district 28 | Challenger or open seat | FEC |
| SOLIS, LENORE | Republican | House, CA district 28 | Challenger or open seat | FEC |
| STOKES, STEVE | Independent | House, CA district 28 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| DUENAS, ANGELICA MARIA | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| GUZIK, MICHAEL R | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PERRAS, BRIAN | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| SANCHEZ, ABDELI | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| BEN-DOV, NAORA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| BERINA, COURTNEY JAMES | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| CARROLL, BRIAN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| COLLIN, SUSAN | Independent | House, CA district 30 | Challenger or open seat | FEC |
| DORAZIO, ROYCE | NPA | House, CA district 30 | Challenger or open seat | FEC |
| FABRICANT, DANNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| GENOVESE, SAL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| KAHN, PAULA | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| KENNEDY, RONDA | Republican | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| NALBANDIAN, JOHNNY | Republican | House, CA district 30 | Challenger or open seat | FEC |
| PUDLO, G MAEBE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| REED, MARK | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| AHMED, KAISAR | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHABOT, PAUL R | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CISNEROS, GILBERT | Democratic | House, CA district 31 | Incumbent | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GIBBONEY, AGNES | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MILLER, GARY G | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| WEEMS, EUGENE | W | House, CA district 31 | Challenger or open seat | FEC |
| GONZALES, EMANUEL LAWRENCE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| HERNANDEZ, ROGER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KASHIFALGHITA, MESHAL 'KASH' | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| KHAN, MUMIN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LUTZ, MARY ANN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| MADRIGAL, RAUL ALI | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| QUINTERO, ANDRE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RHODES, AARIKA SAMONE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SCOTT, JOSHUA | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| VOLOTZKY, LUCIE LAPOINTE | Republican | House, CA district 32 | Challenger or open seat | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| BARRIS, LIZ | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| BRADLEY, JAMES P. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| FRICKE, BRANDON | NPA | House, CA district 33 | Challenger or open seat | FEC |
| GOLDBERG, ALBERT MAXWELL | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| LIEW, SARAH SUN | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| RODGERS, EMORY | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WILLIAMSON, MARIANNE | None | House, CA district 33 | Challenger or open seat | FEC |
| WRIGHT, KENNETH | Republican | House, CA district 33 | Challenger or open seat | FEC |
| AHN, ROBERT LEE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| ALVAREZ, SIMON MARK | Republican | House, CA district 34 | Challenger or open seat | FEC |
| ARAMAYO, VANESSA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BARAJAS, RAMON III | Republican | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| CABILDO, MARIA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARMONA, ARTURO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| EDWARDS, ADRIENNE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GOMEZ, JIMMY | Democratic | House, CA district 34 | Incumbent | FEC |
| HERNANDEZ, SARA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIM, DAVID | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MEJIA, KENNETH | Green | House, CA district 34 | Challenger or open seat | FEC |
| MENDOZA, SANDRA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| PITTMAN, SHANNEL | Green | House, CA district 34 | Challenger or open seat | FEC |
| SCOTT, KEANAKAY | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| WALKER, MICHELLE "HOPE" | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| WALLACE, TENAYA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| WRIGHT, JOANNE | Republican | House, CA district 34 | Challenger or open seat | FEC |
| AHUMADA, ALFREDO | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| CARGILE, MIKE | Republican | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| VALIENTE, CHRISTIAN | Republican | House, CA district 35 | Challenger or open seat | FEC |
| BALL, DAN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BENTLEY, ROBERT | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BONO MACK, MARY | Republican | House, CA district 36 | Challenger or open seat | FEC |
| COLLINS, JOE E III | Republican | House, CA district 36 | Challenger or open seat | FEC |
| CRUZ, ERIN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| GLICK, JESSE FALLON | Republican | House, CA district 36 | Challenger or open seat | FEC |
| KIMBLER, PATRICE | Republican | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| PELZER, KIMBERLIN BROWN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| RUIZ, RAUL | Republican | House, CA district 36 | Challenger or open seat | FEC |
| STEVANOVICH, MILO MILUTIN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BASS, KAREN | Democratic | House, CA district 37 | Incumbent | FEC |
| BASSILIAN, RON | Republican | House, CA district 37 | Challenger or open seat | FEC |
| DIBS, NICHOLAS (NICK) | Independent | House, CA district 37 | Challenger or open seat | FEC |
| SILVERA, AARON ALBERT | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| THOMPSON, LARRY | NPA | House, CA district 37 | Challenger or open seat | FEC |
| WEBBER, ERROL | Republican | House, CA district 37 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 38 | Challenger or open seat | FEC |
| JONES, PAUL IRVING REVEREND | Republican | House, CA district 38 | Challenger or open seat | FEC |
| MENDOZA, BRANDON | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| TOLAR, MICHAEL | Democratic | House, CA district 38 | Challenger or open seat | FEC |
| ALEMAYHU, TED | OTH | House, CA district 39 | Challenger or open seat | FEC |
| ALEXANDER, SOPHIA JOSEPHINE 8506376927 | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CASTANEDA, JULIO | None | House, CA district 39 | Challenger or open seat | FEC |
| COX, STEVE | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CULLUM, JOHN J | Republican | House, CA district 39 | Challenger or open seat | FEC |
| JAMMAL, SAMIR | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| JANOWICZ, PHIL ANDREW | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LEE, HERBERT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LEGGETT, SUZI | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LIBERATORE, PHIL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| NELSON, SHAWN | Republican | House, CA district 39 | Challenger or open seat | FEC |
| ROYCE, ED | Republican | House, CA district 39 | Incumbent | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| THORBURN, ANDY | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| TRAN, MAI-KHANH | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| VARGAS, STEVEN | Republican | House, CA district 39 | Challenger or open seat | FEC |
| BARRAGAN, RODOLFO CORTES | Green | House, CA district 40 | Challenger or open seat | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| CORTES BARRAGAN, RODOLFO | Green | House, CA district 40 | Challenger or open seat | FEC |
| DELGADO, ANTONIO | Republican | House, CA district 40 | Challenger or open seat | FEC |
| FELIX, ANTHONY JR. | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| GRAHAM, MICHAEL DONNELL JR | OTH | House, CA district 40 | Challenger or open seat | FEC |
| KIM, YOUNG | Republican | House, CA district 40 | Incumbent | FEC |
| METZGER, ORION PAIGE | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| RIVERA, JUAN LUIS | Libertarian | House, CA district 40 | Challenger or open seat | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| SANCHEZ, DAVID | Democratic | House, CA district 40 | Challenger or open seat | FEC |
| LEWIS, JERRY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SHERIDAN, TIMOTHY J | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SMITH, AJA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| WILLIAMS, GRACE I | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| BURLEY, BRIAN J | Republican | House, CA district 42 | Challenger or open seat | FEC |
| FRITZ, DAVID | Republican | House, CA district 42 | Challenger or open seat | FEC |
| HARVEY, FLOYD | Republican | House, CA district 42 | Challenger or open seat | FEC |
| MARSTON, REGINA L | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| MILLER, DANIEL JAKE | Republican | House, CA district 42 | Challenger or open seat | FEC |
| O'MARA, WILLIAM EDWARD IV | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| PEACOCK, JULIA C. | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| RIOS, ANGEL ANTHONY | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| WOODY, MATT | None | House, CA district 42 | Challenger or open seat | FEC |
| CHEADLE, GREGORY | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| COLLINS, JOE EDWARD | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| KELLY, RON | None | House, CA district 43 | Challenger or open seat | FEC |
| KEYS, REGINALD FERNANDO | UN | House, CA district 43 | Challenger or open seat | FEC |
| NAVARRO, OMAR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| ZUNIGA, MIGUEL | Green | House, CA district 43 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| BROWN, AJA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| EARLEY, BILLY | Republican | House, CA district 44 | Challenger or open seat | FEC |
| GRIFFIN, MORRIS F | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| JOYA, ANALILIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| MCDONALD TRANI, ANNETTE | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| NAVARRO SERRATOS, NANCI NOHELY | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| NETTLES, AARON | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| ORTON, WILLIAM RAYMOND REV. | Republican | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| CAMPBELL, JOHN BT III | Republican | House, CA district 45 | Challenger or open seat | FEC |
| CHEN, JAY | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FORDE, BRIAN | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FURIN, RHONDA DEE | Republican | House, CA district 45 | Challenger or open seat | FEC |
| GENNAWEY, RAY | Republican | House, CA district 45 | Challenger or open seat | FEC |
| HUANG, PEGGY | Republican | House, CA district 45 | Challenger or open seat | FEC |
| LEAVENS, DREW EUGENE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PAI, ADITYA | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| PROCTOR, JULIE ANN | Republican | House, CA district 45 | Challenger or open seat | FEC |
| RAMSAY, GREGORY ROBERT 7145321445 | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| RATHS, GREGORY GERARD | Republican | House, CA district 45 | Challenger or open seat | FEC |
| SEDGWICK, DONALD M | Republican | House, CA district 45 | Challenger or open seat | FEC |
| SPARKS, LISA | Republican | House, CA district 45 | Challenger or open seat | FEC |
| STEEL, MICHELLE | Republican | House, CA district 45 | Incumbent | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| WALTERS, MIMI | Republican | House, CA district 45 | Incumbent | FEC |
| WOOLWORTH, BRENTON | Republican | House, CA district 45 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| DUNN, JOSEPH | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| GONZALES, CHRISTOPHER | Republican | House, CA district 46 | Challenger or open seat | FEC |
| JOHNSON, WILL | OTH | House, CA district 46 | Challenger or open seat | FEC |
| LAMBERT, RUSSELL RENE | Republican | House, CA district 46 | Challenger or open seat | FEC |
| MENDIOLEA, PABLO | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| RUSHMAN, ED | None | House, CA district 46 | Challenger or open seat | FEC |
| WATERS, JAMES STEVENS | Republican | House, CA district 46 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CLIFFORD, DAVID | Republican | House, CA district 47 | Challenger or open seat | FEC |
| GRIFFITH, WILLIAM | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| HODGKINS, JOSEF VERNON | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| MCLEOD, JALEN DUPREE | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| MOUA, SOU | Republican | House, CA district 47 | Challenger or open seat | FEC |
| PORTER, KATHERINE | Democratic | House, CA district 47 | Incumbent | FEC |
| ROSHAN, SHAWN | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| ROUDA, HARLEY E JR | Democratic | House, CA district 47 | Incumbent | FEC |
| WEST, AMY PHAN | Republican | House, CA district 47 | Challenger or open seat | FEC |
| WHALLON, ANDREW | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CAMPA-NAJJAR, AMMAR | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| COX, CHRISTOPHER | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ENGELS, CHRISTOPHER MICHAEL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| GRIFFIN, JAMES BRIAN | Republican | House, CA district 48 | Challenger or open seat | FEC |
| HOULAHAN, STEPHEN WILLIAM | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| KEIRSTEAD, HANS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| KOTICK, MICHAEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| MATA, RICHARD | OTH | House, CA district 48 | Challenger or open seat | FEC |
| MURILLO, TAMI LE | Republican | House, CA district 48 | Challenger or open seat | FEC |
| OATMAN, LAURA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| PAYNE, RACHEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| RICE, DANIEL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ROBERTS, BOYD LACHLAN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ROHRABACHER, DANA | Republican | House, CA district 48 | Incumbent | FEC |
| SANDMAN, SHASTINA | Republican | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHUESLER, JOHN THOMAS | Republican | House, CA district 48 | Challenger or open seat | FEC |
| SIDDIQUI, OMAR A. | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| STURGES, CALEB SAMUEL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| APPLEGATE, DOUGLAS LOREN | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| FORTIN, MARA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| GASPAR, KRISTIN | Republican | House, CA district 49 | Challenger or open seat | FEC |
| HARKEY, DIANE | Republican | House, CA district 49 | Challenger or open seat | FEC |
| KERR, PAUL | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| KNOBLOCK, STEVEN CRAIG | Republican | House, CA district 49 | Challenger or open seat | FEC |
| LEVIN, MIKE | Democratic | House, CA district 49 | Incumbent | FEC |
| MARYOTT, BRIAN L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| NORDAL, CRAIG | Republican | House, CA district 49 | Challenger or open seat | FEC |
| PENDLETON, ROBERT | NOP | House, CA district 49 | Challenger or open seat | FEC |
| SCHMITT, MICHAEL D | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ABED, SAM | Republican | House, CA district 50 | Challenger or open seat | FEC |
| ADALIA, ZOILO | DGR | House, CA district 50 | Challenger or open seat | FEC |
| BALKIN, ALEX | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| CALDERON, MARISA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| CORTES, JOSE | OTH | House, CA district 50 | Challenger or open seat | FEC |
| DEMAIO, CARL | Republican | House, CA district 50 | Challenger or open seat | FEC |
| DUNCAN, HUNTER SPEARS | Republican | House, CA district 50 | Challenger or open seat | FEC |
| EDICK, DAVID DANIEL JR | None | House, CA district 50 | Challenger or open seat | FEC |
| HERRERA, NICHOLAS | Republican | House, CA district 50 | Challenger or open seat | FEC |
| HORVATH, HELEN LILI | UN | House, CA district 50 | Challenger or open seat | FEC |
| HUNTER, DUNCAN D | Republican | House, CA district 50 | Incumbent | FEC |
| JAHN, LUCINDA KWH | NOP | House, CA district 50 | Challenger or open seat | FEC |
| JONES, BRIAN W | Republican | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| OTA, HENRY ALAN | FS | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| RAHN, MATT | Republican | House, CA district 50 | Challenger or open seat | FEC |
| RYANS, JERLILIA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| WELLS, WILLIAM DANIEL | Republican | House, CA district 50 | Challenger or open seat | FEC |
| WILKINS, NATHAN "NATE" | Republican | House, CA district 50 | Challenger or open seat | FEC |
| WILSKE, LARRY A | Republican | House, CA district 50 | Challenger or open seat | FEC |
| HIDALGO, JUAN M JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| HIDALGO, JUAN M SGTMAJ JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| JACOBS, SARA | Democratic | House, CA district 51 | Incumbent | FEC |
| MITCHELL, KEVIN | NOP | House, CA district 51 | Challenger or open seat | FEC |
| RENISON, JOHN | Republican | House, CA district 51 | Challenger or open seat | FEC |
| RODRIGUEZ, SAUL ALEJANDRO | Republican | House, CA district 51 | Challenger or open seat | FEC |
| BILBRAY, BRIAN PHILLIP | Republican | House, CA district 52 | Challenger or open seat | FEC |
| CASADY, NANCY LEE | Democratic | House, CA district 52 | Challenger or open seat | FEC |
| CUNNINGHAM, RYAN BARRETT | NPA | House, CA district 52 | Challenger or open seat | FEC |
| DEBELLO, JAMES | Republican | House, CA district 52 | Challenger or open seat | FEC |
| DEMAIO, CARL | Republican | House, CA district 52 | Challenger or open seat | FEC |
| MOTIWALLA, FRANCES YASMEEN | Democratic | House, CA district 52 | Challenger or open seat | FEC |
| QUDRAT, OMAR | Republican | House, CA district 52 | Challenger or open seat | FEC |
| SHOOTMAN, GABRIEL | UN | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| VELTMEYER, JAMES | Republican | House, CA district 52 | Challenger or open seat | FEC |
| BROOKS II, JOHN L | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| CABALLERO, JOSE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| DAVIS, SUSAN A. | Democratic | House, CA district 53 | Incumbent | FEC |
| DE LA FUENTE, RICARDO | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| FERRARA, DANIEL PHILLIP | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| FIELDS, ZACK | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| FOUNTAIN, JOSEPH | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| FOX, DEVORAH ANN PSY.D | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| GARCIA, FERNANDO | OTH | House, CA district 53 | Challenger or open seat | FEC |
| GOLDBECK, JANESSA | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| GOMEZ, GEORGETTE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| KIM, BRYAN | NOP | House, CA district 53 | Challenger or open seat | FEC |
| KUTNER, ERIC ROGER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| MENDOZA, MATTHEW JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
| MEZA, ANNETTE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| MURTAUGH, MORGAN | Republican | House, CA district 53 | Challenger or open seat | FEC |
| ORISTIAN, MICHAEL PATRICK | Republican | House, CA district 53 | Challenger or open seat | FEC |
| RAMON CABALLERO, JOSE IIII | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| RAMOS, FAMELA SALDANA | Republican | House, CA district 53 | Challenger or open seat | FEC |
| SANTORI, SUZETTE | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| SHARMA, PETER | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| STODDARD, CHRISTOPHER | Republican | House, CA district 53 | Challenger or open seat | FEC |
| VAZQUEZ, JOAQUIN | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| WONG, TOM K | Democratic | House, CA district 53 | Challenger or open seat | FEC |
2017–2018 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| GRUNDMANN, DON J. | NOP | Senate, CA | Challenger or open seat | FEC |
| LE, DIEN | Republican | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ADAMS, DONALD R | Republican | Senate, CA | Challenger or open seat | FEC |
| BHUMITRA, ARUN K | Republican | Senate, CA | Challenger or open seat | FEC |
| BOXER, BARBARA | Democratic | Senate, CA | Incumbent | FEC |
| BRADLEY, JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| BRENNAN, CHRISTOPHER | Democratic | Senate, CA | Challenger or open seat | FEC |
| CARROLL, JERRY LEON | OTH | Senate, CA | Challenger or open seat | FEC |
| CHAVEZ, ROCKY | Republican | Senate, CA | Challenger or open seat | FEC |
| CONLON, GREG | Republican | Senate, CA | Challenger or open seat | FEC |
| COSON, GARY LYNN | Republican | Senate, CA | Challenger or open seat | FEC |
| CREW, JOHN "JACK" | Republican | Senate, CA | Challenger or open seat | FEC |
| CRUZ, ERIN | Republican | Senate, CA | Challenger or open seat | FEC |
| DE LA FUENTE, ROQUE ROCKY | Republican | Senate, CA | Challenger or open seat | FEC |
| DE LEON, KEVIN | Democratic | Senate, CA | Challenger or open seat | FEC |
| DEL BECCARO, THOMAS | Republican | Senate, CA | Challenger or open seat | FEC |
| EDWARDS, ADRIENNE NICOLE | Democratic | Senate, CA | Challenger or open seat | FEC |
| EISEN, MICHAEL | Independent | Senate, CA | Challenger or open seat | FEC |
| ESTRADA, JOHN | Republican | Senate, CA | Challenger or open seat | FEC |
| EVANS, MERVIN LEON | Democratic | Senate, CA | Challenger or open seat | FEC |
| FEINSTEIN, DIANNE | Democratic | Senate, CA | Incumbent | FEC |
| FERNALD, COLLEEN | NOP | Senate, CA | Challenger or open seat | FEC |
| GHOSH, RASH BIHARI | NOP | Senate, CA | Challenger or open seat | FEC |
| GILDERSLEEVE, TIM | NOP | Senate, CA | Challenger or open seat | FEC |
| GIRGIS, MICHAEL FAHMY | NOP | Senate, CA | Challenger or open seat | FEC |
| GOLDBERG, NEIL BRIAN | Independent | Senate, CA | Challenger or open seat | FEC |
| GUTIERREZ, PAUL ANTHONY | Republican | Senate, CA | Challenger or open seat | FEC |
| HANANIA, JASON | NOP | Senate, CA | Challenger or open seat | FEC |
| HARRIS, EUGENE PATTERSON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HARRIS, KAMALA D | Democratic | Senate, CA | Incumbent | FEC |
| HARTSON, ALISON | Democratic | Senate, CA | Challenger or open seat | FEC |
| HILDEBRAND, DAVID | Democratic | Senate, CA | Challenger or open seat | FEC |
| HODGE, CHARLES JUNIOR | Independent | Senate, CA | Challenger or open seat | FEC |
| HOWARD, ALBERT | Republican | Senate, CA | Challenger or open seat | FEC |
| KALEMKARIAN, TIMOTHY CHARLES | Republican | Senate, CA | Challenger or open seat | FEC |
| LANCONA, CAREN DIANNA | Republican | Senate, CA | Challenger or open seat | FEC |
| LARIVEE, BOB | Republican | Senate, CA | Challenger or open seat | FEC |
| LAWS, JERRY JOSEPH | Republican | Senate, CA | Challenger or open seat | FEC |
| LITTLE, PATRICK | Republican | Senate, CA | Challenger or open seat | FEC |
| MEAD, RICHARD THOMAS | Unknown | Senate, CA | Challenger or open seat | FEC |
| MELENDEZ, JOHN | Democratic | Senate, CA | Challenger or open seat | FEC |
| MOORE, DAVID | NOP | Senate, CA | Challenger or open seat | FEC |
| MOTTUS, KEVIN | Republican | Senate, CA | Challenger or open seat | FEC |
| MUNROE, MASSIE BS PE | Democratic | Senate, CA | Challenger or open seat | FEC |
| NABLIBA, MARIO | Republican | Senate, CA | Challenger or open seat | FEC |
| OLSON, LEE W | NOP | Senate, CA | Challenger or open seat | FEC |
| PALZER, THOMAS EDWARD | Republican | Senate, CA | Challenger or open seat | FEC |
| PARKER, JOHN | W | Senate, CA | Challenger or open seat | FEC |
| PETERS, HERBERT G. | Democratic | Senate, CA | Challenger or open seat | FEC |
| PLUMMER, GERALD | Democratic | Senate, CA | Challenger or open seat | FEC |
| QUINTANA, BRIAN | Democratic | Senate, CA | Challenger or open seat | FEC |
| REID, DERRICK MICHAEL | Libertarian | Senate, CA | Challenger or open seat | FEC |
| ROBERTS, CLIFTON | OTH | Senate, CA | Challenger or open seat | FEC |
| ROSEBERRY, KAREN | Republican | Senate, CA | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SCHRADER, STEPHEN JAMES | Republican | Senate, CA | Challenger or open seat | FEC |
| SHI, LING LING | NOP | Senate, CA | Challenger or open seat | FEC |
| STOKES, STEVE | Democratic | Senate, CA | Challenger or open seat | FEC |
| TAYLOR, PAUL ALLEN | Republican | Senate, CA | Challenger or open seat | FEC |
| TURNER, DONNIE O | Democratic | Senate, CA | Challenger or open seat | FEC |
| VAN RAAM, DOUGLAS SCOTT | FSP | Senate, CA | Challenger or open seat | FEC |
| WILLIAMSON, JARRELL | Republican | Senate, CA | Challenger or open seat | FEC |
| ZIESING, MICHAEL VINCENT | Green | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| HUBER, ALYSON | Democratic | House, CA | Challenger or open seat | FEC |
| NWADIKE, KENNETH E JR | Democratic | House, CA | Challenger or open seat | FEC |
| ESTRADA, LUIS CARLOS | Democratic | House, CA | Challenger or open seat | FEC |
| VAN WHY, MEGAN NICHOLE | OTH | House, CA | Challenger or open seat | FEC |
| DENNEY, AUDREY L | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| DUNCAN, DENNIS DEAN | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| ELBINGER, LEWIS | Green | House, CA district 1 | Challenger or open seat | FEC |
| GERLACH, JEFFREY D | NPA | House, CA district 1 | Challenger or open seat | FEC |
| HOLCOMBE, JESSICA JONES | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| JORDAN, LAWRENCE WHITING | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| MONTES, JOSEPH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| OXLEY, GARY ALLEN | Republican | House, CA district 1 | Challenger or open seat | FEC |
| REED, JAMES E | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| STORMENT, BRANDON | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WALTERS, MARTHA | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WOLMAN, CAROL STONE | Green | House, CA district 1 | Challenger or open seat | FEC |
| CAFFREY, ANDY | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| JACOBSON, JOHN | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| SCHRODE, ERIN AZARIA | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| CLEEK, N EUGENE MD | Republican | House, CA district 3 | Challenger or open seat | FEC |
| CORE, TIMOTHY JAMES | Republican | House, CA district 3 | Challenger or open seat | FEC |
| FAVIS, STEVE DONALD | Independent | House, CA district 3 | Challenger or open seat | FEC |
| HARTER, RYAN | Independent | House, CA district 3 | Challenger or open seat | FEC |
| LOGUE, DANIEL | Republican | House, CA district 3 | Challenger or open seat | FEC |
| MORSE, JESSICA | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| PUETT, KEVIN | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| SCHAUPP, CHARLES EUGENE | Republican | House, CA district 3 | Challenger or open seat | FEC |
| BATESON, REGINA | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| CALDERON, ROZA I | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| DERLET, ROBERT WAYNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| FRAME, SEAN COLIN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| KISHINEFF, JASON | None | House, CA district 4 | Challenger or open seat | FEC |
| LAWTON, ROBERT | Republican | House, CA district 4 | Challenger or open seat | FEC |
| MARTIN, RICHARD JAMES | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| WHITE, MITCHELL | Republican | House, CA district 4 | Challenger or open seat | FEC |
| WILCOX, ROCHELLE LYN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| CILLEY, STEWART JOHN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| MILLS, ANTHONY | NOP | House, CA district 5 | Challenger or open seat | FEC |
| PALSSON, NILS IAN | NOP | House, CA district 5 | Challenger or open seat | FEC |
| SANTAMARIA, CARLOS J | Republican | House, CA district 5 | Challenger or open seat | FEC |
| VAN RAAM, DOUGLAS SCOTT | Republican | House, CA district 5 | Challenger or open seat | FEC |
| GALVAN, MARIO | None | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, DELMA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, JRMAR | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| LUTALO, RONALD MUWEREZA SR | Republican | House, CA district 6 | Challenger or open seat | FEC |
| SERETSKIY, YURIY | NON | House, CA district 6 | Challenger or open seat | FEC |
| BARASH, YONA | Republican | House, CA district 7 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| CLAYTOR, REGINALD H | NOP | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| GRANT, ANDREW | Republican | House, CA district 7 | Challenger or open seat | FEC |
| JONES, SCOTT | Republican | House, CA district 7 | Challenger or open seat | FEC |
| KIPUKE, OMBA | Republican | House, CA district 7 | Challenger or open seat | FEC |
| LUNGREN, DANIEL E. | Republican | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| MCCONNELL, CAMDEN | Libertarian | House, CA district 7 | Challenger or open seat | FEC |
| RICHARDSON, ROBERT CHRISTIAN | Green | House, CA district 7 | Challenger or open seat | FEC |
| WESTMORELAND, BRAD | Democratic | House, CA district 7 | Challenger or open seat | FEC |
| BROWN, YOLANDA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CONAWAY, ROBERT DEAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CONOVER, RODNEY LEE | Republican | House, CA district 8 | Challenger or open seat | FEC |
| COOK, PAUL | Republican | House, CA district 8 | Incumbent | FEC |
| DONNELLY, TIM | Republican | House, CA district 8 | Challenger or open seat | FEC |
| DONNELLY, TIMOTHY M. | Republican | House, CA district 8 | Challenger or open seat | FEC |
| DOYLE, MARGE | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| LAPLANTE, ROGER ALAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| LOVATO, DESTINY WRAY | Republican | House, CA district 8 | Challenger or open seat | FEC |
| MITZELFELT, BRAD | Republican | House, CA district 8 | Challenger or open seat | FEC |
| O'DONNELL, RONALD | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| PINKERTON, JOHN RAYMOND III | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RAMIREZ-DEAN, RITA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| AMADOR, ANTONIO C | Republican | House, CA district 9 | Challenger or open seat | FEC |
| APPLEBY, ALEXANDER E | Libertarian | House, CA district 9 | Challenger or open seat | FEC |
| COLANGELO, STEVE ANTHONY | Republican | House, CA district 9 | Challenger or open seat | FEC |
| HARDER, JOSH | Democratic | House, CA district 9 | Incumbent | FEC |
| LIVENGOOD, MARLA | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| SILVA, ROBERT LEO II MA | Republican | House, CA district 9 | Challenger or open seat | FEC |
| TSARNAS, MIKE | OTH | House, CA district 9 | Challenger or open seat | FEC |
| ATTWOOD, TIFFANY | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| BATTISTA, LISA | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| BEDOLLA, MATEO MORELOS | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| CLOWARD, JEREMY | Green | House, CA district 10 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| EGGMAN, MICHAEL RAY | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| HODGES, ROBERT L | Republican | House, CA district 10 | Challenger or open seat | FEC |
| HOWZE, TED D II | Republican | House, CA district 10 | Challenger or open seat | FEC |
| MADUENO, VIRGINIA | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| NYGARD, DOROTHY (DOTTY) | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| SHOBLOM, SCOTT | Independent | House, CA district 10 | Challenger or open seat | FEC |
| SNOVER, TERRA EVA | Independent | House, CA district 10 | Challenger or open seat | FEC |
| VANGUNDY, GINO | Unknown | House, CA district 10 | Challenger or open seat | FEC |
| VAUGHN, SETH MICHAEL | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| WATSON, KENNITA | Libertarian | House, CA district 10 | Challenger or open seat | FEC |
| ZWAHLEN, SUE | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| BUTTAR, SHAHID | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| FITZGERALD, JOHN | Republican | House, CA district 11 | Challenger or open seat | FEC |
| FULLER-KENDALL, VIRGINIA | OTH | House, CA district 11 | Challenger or open seat | FEC |
| GOEHRING, BRAD | Republican | House, CA district 11 | Challenger or open seat | FEC |
| LYTTON, ALVA | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| MILLER, GEORGE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| SUDDUTH, CHERYL | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| WOOD, CHRIS | OTH | House, CA district 11 | Challenger or open seat | FEC |
| DAVIES, CURTIS R | Republican | House, CA district 12 | Challenger or open seat | FEC |
| DEMASI, CHASE | Republican | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| GOLDSTEIN, MICHAEL | NOP | House, CA district 12 | Challenger or open seat | FEC |
| HARDING, JOSEPH MICHAEL | W | House, CA district 12 | Challenger or open seat | FEC |
| HERMANSON, BARRY | Green | House, CA district 12 | Challenger or open seat | FEC |
| JAFFE, STEPHEN R | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| KHOJASTEH, RYAN | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| LARA, FRANK | PAF | House, CA district 12 | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | House, CA district 12 | Incumbent | FEC |
| PETERSON, DAVID | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| PICUS, PRESTON | Independent | House, CA district 12 | Challenger or open seat | FEC |
| REMMER, LISA | Republican | House, CA district 12 | Challenger or open seat | FEC |
| THORSSON, ANTHONY JOHN "DESMOND" | OTH | House, CA district 12 | Challenger or open seat | FEC |
| WELLS, LAURA | Green | House, CA district 13 | Challenger or open seat | FEC |
| OSMENA, CRISTINA | Republican | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| CORBETT, ELLEN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| PETERS, RUDY PETERS | Republican | House, CA district 15 | Challenger or open seat | FEC |
| ST JOHN, ERICK BRENDAN | NPA | House, CA district 15 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| FREDRICH, JOHN KARL | None | House, CA district 16 | Challenger or open seat | FEC |
| HENG, ELIZABETH | Unknown | House, CA district 16 | Challenger or open seat | FEC |
| MELTON, JOB EMANUEL | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| SAHAGUN, DANIEL | Republican | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| CHANDLER, WILLIAM THARON | Independent | House, CA district 17 | Challenger or open seat | FEC |
| COHEN, RONALD H | Republican | House, CA district 17 | Challenger or open seat | FEC |
| FORBES, STEPHEN | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| TRAN, KHANH | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| WATSON, KENNITA | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FOX, RICHARD B | Republican | House, CA district 18 | Challenger or open seat | FEC |
| HARLOW, BOB | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| MELILLO, MICHAEL | Independent | House, CA district 18 | Challenger or open seat | FEC |
| RUSSELL, CHRISTINE | Republican | House, CA district 18 | Challenger or open seat | FEC |
| AGUILERA, JUSTIN | Republican | House, CA district 19 | Challenger or open seat | FEC |
| DEITCH, DOUGLAS | Democratic | House, CA district 19 | Challenger or open seat | FEC |
| LEE, JOHNNY | Republican | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| BRUNER, MATTHEW | Independent | House, CA district 20 | Challenger or open seat | FEC |
| CHEADER, ROBERT NEIL | Independent | House, CA district 20 | Challenger or open seat | FEC |
| DAVIS, JAMES | Republican | House, CA district 20 | Challenger or open seat | FEC |
| FARR, SAM | Democratic | House, CA district 20 | Incumbent | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| KABAT, RONALD P. | NPA | House, CA district 20 | Challenger or open seat | FEC |
| LUCIUS, CASEY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| MILLER, JOSHUA THOMAS COULSTON | Republican | House, CA district 20 | Challenger or open seat | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| COX, TERRENCE JOHN (TJ) | Democratic | House, CA district 21 | Incumbent | FEC |
| COX, TJ | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| HUERTA, EMILIO J. | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| PARRA, DANIEL | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| RENTERIA, AMANDA | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| ANDRES, TERESITA AYA | Unknown | House, CA district 22 | Challenger or open seat | FEC |
| BLIATOUT, BOBBY | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| CARROLL, BRIAN | NOP | House, CA district 22 | Challenger or open seat | FEC |
| CATANO, JOHN P | Republican | House, CA district 22 | Challenger or open seat | FEC |
| FRANCO, RICARDO JOSE | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| JANZ, ANDREW | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| LEE, OTTO | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| MERRYMAN, WILLIAM "BILL" | Libertarian | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| WILLIAMS, BRANT JOHN-MICHAEL | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| BARRO, MARY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| GARCIA, RAUL | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MATTA, TATIANA | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| MORRIS, GERALD A | Republican | House, CA district 23 | Challenger or open seat | FEC |
| OWEN, ROBERT THURMAN III | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| REED, WENDY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ROSENBERGER, JUSTIN LEE | Independent | House, CA district 23 | Challenger or open seat | FEC |
| SANDOVAL, JESUS R | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| WILSON, KURTIS | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CAPPS, LOIS G | Democratic | House, CA district 24 | Incumbent | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| FAREED, JUSTIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| FRASER, CHIP | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| GALLEGLY, ELTON | Republican | House, CA district 24 | Challenger or open seat | FEC |
| ISAKSON, STEVE WESLEY PHD | None | House, CA district 24 | Challenger or open seat | FEC |
| KOKKONEN, MATT | Republican | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| WOODY, MICHAEL ERIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| BRUCE, DAVID KOSTER | Libertarian | House, CA district 25 | Challenger or open seat | FEC |
| CAFORIO, BRYAN | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| FARRELL-SMITH, KELAN JOHN | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| FLEMING, DANIEL | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| GAMBLE, VENICE JAYMES II | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| GREENAWAY, DIEDRA MICHELLE | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| HILL, KATHERINE LAUREN | Democratic | House, CA district 25 | Incumbent | FEC |
| KNIGHT, STEVE | Republican | House, CA district 25 | Incumbent | FEC |
| LEONARD, HARRISON | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MASTERMAN-SMITH, MIKE | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| MCKEON, HOWARD P "BUCK" | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MCVARISH, SCOTT | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| MOLINA, LAURA | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| PALLANT, MARY | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| PHOENIX, JESS | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| STRICKLAND, ANTHONY A | Republican | House, CA district 25 | Challenger or open seat | FEC |
| THOMAS, EVAN CHARLES | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| WRIGHT, CATHIE | Republican | House, CA district 25 | Challenger or open seat | FEC |
| WYMAN, PHILLIP D | Republican | House, CA district 25 | Challenger or open seat | FEC |
| BROWN, ROBERT | None | House, CA district 26 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| BURUM, JEFFREY DAVID MAJ (RET) | Republican | House, CA district 26 | Challenger or open seat | FEC |
| DAGNESSES, RAFAEL | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GORELL, JEFF | Republican | House, CA district 26 | Challenger or open seat | FEC |
| NELSON, JOHN | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| SABATO, ANTONIO | Republican | House, CA district 26 | Challenger or open seat | FEC |
| SKELTON, SHANE JOHN | Republican | House, CA district 26 | Challenger or open seat | FEC |
| CARDENAS, BEATRICE FOR | Republican | House, CA district 27 | Challenger or open seat | FEC |
| DARIAN, BRUCE HARRY | FED | House, CA district 27 | Challenger or open seat | FEC |
| ESPINOZA, BRIAN ANTHONY | Libertarian | House, CA district 27 | Challenger or open seat | FEC |
| ORSWELL, JACK | Republican | House, CA district 27 | Challenger or open seat | FEC |
| WITT, BRYAN | Democratic | House, CA district 27 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| GRAY, CASEY LOGSDON | Republican | House, CA district 28 | Challenger or open seat | FEC |
| KALBFELD, JONATHAN RYAN | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| MARKOS, JUAN | NPA | House, CA district 28 | Challenger or open seat | FEC |
| NALBANDIAN, JOHNNY | Republican | House, CA district 28 | Challenger or open seat | FEC |
| NICHOLS, DAMIEN MICHAEL | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| SHAYANI, PAYAM MARK | Independent | House, CA district 28 | Challenger or open seat | FEC |
| STOKES, STEVE | Independent | House, CA district 28 | Challenger or open seat | FEC |
| WORMAN, JENNY | Republican | House, CA district 28 | Challenger or open seat | FEC |
| BERNAL, BENITO BENNY | Republican | House, CA district 29 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| CUSHING, WILLIAM (BILL) P | Libertarian | House, CA district 29 | Challenger or open seat | FEC |
| DUENAS, ANGELICA MARIA | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| LEADER, WILLIAM | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| SHAMMAS, JOSEPH | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| DAVIS, LUKE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| GENOVESE, SAL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| PELZER, JONATHAN | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| REED, MARK | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| SCHRAGE, JOSEPH SCHRAGE | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SINGH, NAVRAJ | Republican | House, CA district 30 | Challenger or open seat | FEC |
| AHMED, KAISAR | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHABOT, PAUL R | Republican | House, CA district 31 | Challenger or open seat | FEC |
| CISNEROS, GILBERT | Democratic | House, CA district 31 | Incumbent | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GOOCH, LESLI E MCCOLLUM | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MILLER, GARY G | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| GONZALES, EMANUEL LAWRENCE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| HERNANDEZ, ROGER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LUTZ, MARY ANN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| QUINTERO, ANDRE | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SCARBOROUGH, LARRY DEAN | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SCHMERLING, EDWARD | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SCOTT, JOSHUA | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| DEGROOT, BENJAMIN | Independent | House, CA district 33 | Challenger or open seat | FEC |
| FLAHERTY, VINCE | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| GREUEL, WENDY J | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| HOLMES, KRISTIE | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| KANUTH, DAVID | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| KILPATRICK, ROBERT DONALD | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| MONTOYA, LUIS | Republican | House, CA district 33 | Challenger or open seat | FEC |
| RODGERS, EMORY | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| SHAPIRO, MICHAEL | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WRIGHT, KENNETH | Republican | House, CA district 33 | Challenger or open seat | FEC |
| AHN, JASON | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| AHN, ROBERT LEE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| ALVAREZ, SIMON MARK | Republican | House, CA district 34 | Challenger or open seat | FEC |
| ARAMAYO, VANESSA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BARAJAS, RAMON III | Republican | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| CABILDO, MARIA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CAMPOVERDI, ALEJANDRA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARMONA, ARTURO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARRILLO DONO, WENDY MARIA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| DE LA FUENTE, RICARDO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| DE LA FUENTE, RICARDO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| EDWARDS, ADRIENNE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| FLORES, YOLIE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GARZA, MELISSA "SHARKIE" | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| GOMEZ, JIMMY | Democratic | House, CA district 34 | Incumbent | FEC |
| HERNANDEZ, SARA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| KIRKWOOD, KEITH LUCAS | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MAC, STEVEN | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MCARDLE, ANGELA E. | Libertarian | House, CA district 34 | Challenger or open seat | FEC |
| MEJIA, KENNETH | Green | House, CA district 34 | Challenger or open seat | FEC |
| MENDOZA, SANDRA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MEZA, RAYMOND ANTHONY JR. | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MORRISON, WILLIAM "RODRIGUEZ" | Republican | House, CA district 34 | Challenger or open seat | FEC |
| PADILLA, MARK EDWARD | NPA | House, CA district 34 | Challenger or open seat | FEC |
| PEREZ, JOHN A | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| SIGANPORIA, KARL | Republican | House, CA district 34 | Challenger or open seat | FEC |
| SOTOMAYOR, ARMANDO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| SULLIVAN, RICHARD JOSEPH | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| SULLIVAN, RICHARD JOSEPH | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| VAN HOUTEN, TRACY | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| WALKER, MICHELLE "HOPE" | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| WALLACE, TENAYA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| VALIENTE, CHRISTIAN | Republican | House, CA district 35 | Challenger or open seat | FEC |
| BALL, DAN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BENTLEY, ROBERT | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BONO MACK, MARY | Republican | House, CA district 36 | Challenger or open seat | FEC |
| CONTRERAS, MARK ANTHONY | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| HASSETT, DOUGLAS | Republican | House, CA district 36 | Challenger or open seat | FEC |
| LAW, JAMES | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| MONTANO, MARIA E | Republican | House, CA district 36 | Challenger or open seat | FEC |
| PELZER, KIMBERLIN BROWN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| PETERSEN, MATT | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| SHARP, ANDREW JAMES | Republican | House, CA district 36 | Challenger or open seat | FEC |
| STONE, JEFFREY E | Republican | House, CA district 36 | Challenger or open seat | FEC |
| WOLKOWICZ, STEPHAN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BASS, KAREN | Democratic | House, CA district 37 | Incumbent | FEC |
| BASSILIAN, RON | Republican | House, CA district 37 | Challenger or open seat | FEC |
| EVANS, MERVIN LEON | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| KANALEY, JOHN M | Republican | House, CA district 37 | Challenger or open seat | FEC |
| REY, JUAN | NOP | House, CA district 37 | Challenger or open seat | FEC |
| SCHIPSKE, GERRIE | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| DOWNING, RYAN | Republican | House, CA district 38 | Challenger or open seat | FEC |
| TURNER, TRACY LYNN | Independent | House, CA district 38 | Challenger or open seat | FEC |
| VAUGHN, ROBERT WILLIAM | Republican | House, CA district 38 | Challenger or open seat | FEC |
| ALEMAYHU, TED | OTH | House, CA district 39 | Challenger or open seat | FEC |
| ALEXANDER, SOPHIA JOSEPHINE 8506376927 | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CASTANEDA, JULIO | None | House, CA district 39 | Challenger or open seat | FEC |
| COX, STEVE | Independent | House, CA district 39 | Challenger or open seat | FEC |
| CULLUM, JOHN J | Republican | House, CA district 39 | Challenger or open seat | FEC |
| HUFF, BOB | Republican | House, CA district 39 | Challenger or open seat | FEC |
| JAMMAL, SAMIR | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| JANOWICZ, PHIL ANDREW | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LEE, HERBERT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LEGGETT, SUZI | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| LIBERATORE, PHIL | Republican | House, CA district 39 | Challenger or open seat | FEC |
| MULATTIERI, D'MARIE | Unknown | House, CA district 39 | Challenger or open seat | FEC |
| MURDOCK, BRETT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| NELSON, SHAWN | Republican | House, CA district 39 | Challenger or open seat | FEC |
| ROYCE, ED | Republican | House, CA district 39 | Incumbent | FEC |
| RUSK, TED | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| SAREGA, ANDREW | Republican | House, CA district 39 | Challenger or open seat | FEC |
| SCHATZLE, KAREN LEE | None | House, CA district 39 | Challenger or open seat | FEC |
| STEED, CYBIL CAMILLE | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| THORBURN, ANDY | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| TRAN, MAI-KHANH | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| VARGAS, STEVEN | Republican | House, CA district 39 | Challenger or open seat | FEC |
| BARRAGAN, RODOLFO CORTES | Green | House, CA district 40 | Challenger or open seat | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| CORTES BARRAGAN, RODOLFO | Green | House, CA district 40 | Challenger or open seat | FEC |
| KIM, YOUNG | Republican | House, CA district 40 | Incumbent | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| LEWIS, JERRY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SHERIDAN, TIMOTHY J | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| SMITH, AJA | Republican | House, CA district 41 | Challenger or open seat | FEC |
| BRISCOE, JOHN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| CALVERT, KEN | Republican | House, CA district 42 | Challenger or open seat | FEC |
| HARVEY, FLOYD | Republican | House, CA district 42 | Challenger or open seat | FEC |
| NOVAK, CURT | OTH | House, CA district 42 | Challenger or open seat | FEC |
| PEACOCK, JULIA C. | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| PRICE, THOMAS EDWARD | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| QUINTERO, NORMAN | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| RAND, ROBERT GUY | None | House, CA district 42 | Challenger or open seat | FEC |
| WILLIAMSON, MICHAEL DALE | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| WOODY, MATT | None | House, CA district 42 | Challenger or open seat | FEC |
| CAMPER, CANDANCE | Republican | House, CA district 43 | Challenger or open seat | FEC |
| CHEADLE, GREGORY | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| COLLINS, JOE EDWARD | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| DEMARTINI, FRANK | Republican | House, CA district 43 | Challenger or open seat | FEC |
| DUTERTE, EDWIN | Republican | House, CA district 43 | Challenger or open seat | FEC |
| NAVARRO, OMAR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| ZUNIGA, MIGUEL | Green | House, CA district 43 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| BROWN, AJA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| DASH, STACEY | Republican | House, CA district 44 | Challenger or open seat | FEC |
| HAHN, JANICE | Democratic | House, CA district 44 | Incumbent | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| JOYA, ANALILIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| ORTON, WILLIAM R. "BILL" | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| SAAVEDRA, JAZMINA | Republican | House, CA district 44 | Challenger or open seat | FEC |
| CAMPBELL, JOHN BT III | Republican | House, CA district 45 | Challenger or open seat | FEC |
| CHEN, JAY | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| COTTON, STANLEY S | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| FORDE, BRIAN | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| GOURON, MAX M.D. | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| GRAHAM, JOHN | None | House, CA district 45 | Challenger or open seat | FEC |
| HAMADANCHY, KIA | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| HUNSICKER, DAVID E | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| LAUTEN, ROBERT EDMUND | Independent | House, CA district 45 | Challenger or open seat | FEC |
| LEAVENS, DREW EUGENE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| MIN, DAVID | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| RAMSAY, GREGORY ROBERT 7145321445 | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| RATHS, GREGORY GERARD | Republican | House, CA district 45 | Challenger or open seat | FEC |
| RYWALSKI, ERIC | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| WALTERS, MIMI | Republican | House, CA district 45 | Incumbent | FEC |
| CONTRERAS, LOUIE A | Republican | House, CA district 46 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| DUNN, JOSEPH | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| JOHNSON, WILL | OTH | House, CA district 46 | Challenger or open seat | FEC |
| LAMBERT, RUSSELL RENE | Republican | House, CA district 46 | Challenger or open seat | FEC |
| NGUYEN, BAO QUOC | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| PETERSON, BOB | Republican | House, CA district 46 | Challenger or open seat | FEC |
| ROCHA, JORGE | Independent | House, CA district 46 | Challenger or open seat | FEC |
| RUSHMAN, ED | None | House, CA district 46 | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | House, CA district 46 | Incumbent | FEC |
| ST JOHN, RONALD R | Republican | House, CA district 46 | Challenger or open seat | FEC |
| VAZQUEZ, CARLOS ALBERTO | Republican | House, CA district 46 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BIEDERMANN, DINA LOUISE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CLIFFORD, DAVID | Republican | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| PORTER, KATHERINE | Democratic | House, CA district 47 | Incumbent | FEC |
| ROUDA, HARLEY E JR | Democratic | House, CA district 47 | Incumbent | FEC |
| WHALLON, ANDREW | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BURNS, DAVID | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| CAMPA-NAJJAR, AMMAR | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| COX, CHRISTOPHER | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ELLINGER, MICHAEL ANTHONY | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| GABBARD, JOHN | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| KEIRSTEAD, HANS | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| KENSINGER, KEVIN THOMAS | Independent | House, CA district 48 | Challenger or open seat | FEC |
| KOTICK, MICHAEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| MARTIN, PAUL | Republican | House, CA district 48 | Challenger or open seat | FEC |
| MUNZING, MICHAEL ANDREW | Republican | House, CA district 48 | Challenger or open seat | FEC |
| OATMAN, LAURA | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ONUFREI, STELIAN | Republican | House, CA district 48 | Challenger or open seat | FEC |
| PAYNE, RACHEL | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| REISER, BRANDON | Libertarian | House, CA district 48 | Challenger or open seat | FEC |
| ROBERTS, BOYD LACHLAN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ROHRABACHER, DANA | Republican | House, CA district 48 | Incumbent | FEC |
| SANDMAN, SHASTINA | Republican | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHAARSMITH, DEANIE ANN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHLAR, ALAN MARK | OTH | House, CA district 48 | Challenger or open seat | FEC |
| SIDDIQUI, OMAR A. | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ZARKADES, TONY | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| APPLEGATE, DOUGLAS LOREN | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| CHAVEZ, ROCKY | Republican | House, CA district 49 | Challenger or open seat | FEC |
| CHRISTINA, PREJEAN | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| GASPAR, KRISTIN | Republican | House, CA district 49 | Challenger or open seat | FEC |
| HANCOCK, JOSHUA L | Libertarian | House, CA district 49 | Challenger or open seat | FEC |
| HARKEY, DIANE | Republican | House, CA district 49 | Challenger or open seat | FEC |
| KERR, PAUL | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| LEVIN, MIKE | Democratic | House, CA district 49 | Incumbent | FEC |
| MARYOTT, BRIAN L | Republican | House, CA district 49 | Challenger or open seat | FEC |
| MEDWAY, DAVID | Republican | House, CA district 49 | Challenger or open seat | FEC |
| MILLS, JORDAN P | OTH | House, CA district 49 | Challenger or open seat | FEC |
| MOORE, JOHNNY | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| NORDAL, CRAIG | Republican | House, CA district 49 | Challenger or open seat | FEC |
| NOVINEC, ALBIN DENNIS | NPA | House, CA district 49 | Challenger or open seat | FEC |
| PENDLETON, ROBERT | NOP | House, CA district 49 | Challenger or open seat | FEC |
| SCHMITT, MICHAEL D | Republican | House, CA district 49 | Challenger or open seat | FEC |
| SCHOONOVER, JOSHUA | Republican | House, CA district 49 | Challenger or open seat | FEC |
| ST JOHN, DANIELLE | Green | House, CA district 49 | Challenger or open seat | FEC |
| BEAUREGARD, PIERRE VOTEAU | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| BUTNER, JOSH | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| CHADWICK, GLORIA | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| HUNTER, DUNCAN D | Republican | House, CA district 50 | Incumbent | FEC |
| KAHLE, RICHARD | NOP | House, CA district 50 | Challenger or open seat | FEC |
| LINNELL, TERRI RUTH | Republican | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| POWELL, MARK EDWARD | OTH | House, CA district 50 | Challenger or open seat | FEC |
| RAHN, MATT | Republican | House, CA district 50 | Challenger or open seat | FEC |
| SAYED, SHAMUS | Republican | House, CA district 50 | Challenger or open seat | FEC |
| SCHECHTER, STEVE | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| SECOR, DAVID B | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| WELLS, WILLIAM DANIEL | Republican | House, CA district 50 | Challenger or open seat | FEC |
| ZELT, ANDREW | Republican | House, CA district 50 | Challenger or open seat | FEC |
| FUENTES, LOUIS A | Republican | House, CA district 51 | Challenger or open seat | FEC |
| GIONIS, XANTHI | Republican | House, CA district 51 | Challenger or open seat | FEC |
| HIDALGO, JUAN M SGTMAJ JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| JACOBS, SARA | Democratic | House, CA district 51 | Incumbent | FEC |
| JOY, DAVID LEE | Republican | House, CA district 51 | Challenger or open seat | FEC |
| MEADE, STEPHEN | Republican | House, CA district 51 | Challenger or open seat | FEC |
| MERCADO, JUAN | None | House, CA district 51 | Challenger or open seat | FEC |
| MITCHELL, KEVIN | NOP | House, CA district 51 | Challenger or open seat | FEC |
| RENISON, JOHN | Republican | House, CA district 51 | Challenger or open seat | FEC |
| ALLMAN, MICHAEL | Republican | House, CA district 52 | Challenger or open seat | FEC |
| BILBRAY, BRIAN PHILLIP | Republican | House, CA district 52 | Challenger or open seat | FEC |
| CASARA, DANIEL | Republican | House, CA district 52 | Challenger or open seat | FEC |
| CULLEN, JEFFREY | Republican | House, CA district 52 | Challenger or open seat | FEC |
| DEMAIO, CARL | Republican | House, CA district 52 | Challenger or open seat | FEC |
| GITSHAM, DENISE | Republican | House, CA district 52 | Challenger or open seat | FEC |
| HORST, JOHN H | Republican | House, CA district 52 | Challenger or open seat | FEC |
| MILLER, ALEXANDER DANIEL | Democratic | House, CA district 52 | Challenger or open seat | FEC |
| QUDRAT, OMAR | Republican | House, CA district 52 | Challenger or open seat | FEC |
| SHOOTMAN, GABRIEL | UN | House, CA district 52 | Challenger or open seat | FEC |
| SIMON, FRED J JR MD | Republican | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| VELTMEYER, JAMES | Republican | House, CA district 52 | Challenger or open seat | FEC |
| ARRINGTON, RANDALL STEVEN PHD | Republican | House, CA district 53 | Challenger or open seat | FEC |
| DAVIS, SUSAN A. | Democratic | House, CA district 53 | Incumbent | FEC |
| GODA, BRETT | Republican | House, CA district 53 | Challenger or open seat | FEC |
| KANE, GINO | Republican | House, CA district 53 | Challenger or open seat | FEC |
| KIM, BRYAN | NOP | House, CA district 53 | Challenger or open seat | FEC |
| MENDOZA, MATTHEW JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
| MURTAUGH, MORGAN | Republican | House, CA district 53 | Challenger or open seat | FEC |
| VELTMEYER, JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
2015–2016 cycle
Senate
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| AGBEDE, AKINYEMI | Democratic | Senate, CA | Challenger or open seat | FEC |
| GRUNDMANN, DON J. | NOP | Senate, CA | Challenger or open seat | FEC |
| LIGHTFOOT, GAIL K | Libertarian | Senate, CA | Challenger or open seat | FEC |
| PIERCE, DOUGLAS HOWARD | Democratic | Senate, CA | Challenger or open seat | FEC |
| ALBERTSON, STEWART | Democratic | Senate, CA | Challenger or open seat | FEC |
| BEITIKS, MIKELIS VALAINIS | Independent | Senate, CA | Challenger or open seat | FEC |
| BOXER, BARBARA | Democratic | Senate, CA | Incumbent | FEC |
| CARROLL, JERRY LEON | OTH | Senate, CA | Challenger or open seat | FEC |
| CHAVEZ, ROCKY | Republican | Senate, CA | Challenger or open seat | FEC |
| CONLON, GREG | Republican | Senate, CA | Challenger or open seat | FEC |
| DEL BECCARO, THOMAS | Republican | Senate, CA | Challenger or open seat | FEC |
| ELIZONDO, PAMELA | Green | Senate, CA | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | Senate, CA | Challenger or open seat | FEC |
| ESTRADA, JOHN | Republican | Senate, CA | Challenger or open seat | FEC |
| EVANS, MERVIN LEON | Democratic | Senate, CA | Challenger or open seat | FEC |
| FALLING, BILLY | Republican | Senate, CA | Challenger or open seat | FEC |
| FEINSTEIN, DIANNE | Democratic | Senate, CA | Incumbent | FEC |
| FIORINA, CARLY | Republican | Senate, CA | Challenger or open seat | FEC |
| GARCIA, ELEANOR | None | Senate, CA | Challenger or open seat | FEC |
| GILDERSLEEVE, TIM | NOP | Senate, CA | Challenger or open seat | FEC |
| GLORIA, ROGELIO T | Republican | Senate, CA | Challenger or open seat | FEC |
| GOLDBERG, NEIL BRIAN | Independent | Senate, CA | Challenger or open seat | FEC |
| GRAPPO, PRESIDENT CRISTINA | Democratic | Senate, CA | Challenger or open seat | FEC |
| GREENE, RUSSELL | Democratic | Senate, CA | Challenger or open seat | FEC |
| GREY, CLIVE | Independent | Senate, CA | Challenger or open seat | FEC |
| HANANIA, JASON | NOP | Senate, CA | Challenger or open seat | FEC |
| HARRIS, KAMALA D | Democratic | Senate, CA | Incumbent | FEC |
| HERD, MARK MATTHEW | Libertarian | Senate, CA | Challenger or open seat | FEC |
| HOUGO, VON | Republican | Senate, CA | Challenger or open seat | FEC |
| HOUSE, PHILLIP MARCEL | Democratic | Senate, CA | Challenger or open seat | FEC |
| HOWARD, ALBERT | Republican | Senate, CA | Challenger or open seat | FEC |
| KALEMKARIAN, TIMOTHY CHARLES | Republican | Senate, CA | Challenger or open seat | FEC |
| KRAMPE, DONALD | Republican | Senate, CA | Challenger or open seat | FEC |
| KRAUS, JASON | NPA | Senate, CA | Challenger or open seat | FEC |
| LANCE-COUNCIL, TEMPERANCE | Democratic | Senate, CA | Challenger or open seat | FEC |
| LARIVEE, BOB | Republican | Senate, CA | Challenger or open seat | FEC |
| LAUTEN, ROBERT | Republican | Senate, CA | Challenger or open seat | FEC |
| LAWS, JERRY JOSEPH | Republican | Senate, CA | Challenger or open seat | FEC |
| LEVINE, MEL | Democratic | Senate, CA | Challenger or open seat | FEC |
| LEVITT, DAVID ALEX | Democratic | Senate, CA | Challenger or open seat | FEC |
| MANDELA, BARACK OBAMA | Democratic | Senate, CA | Challenger or open seat | FEC |
| MERRITT, PAUL | NPA | Senate, CA | Challenger or open seat | FEC |
| MOHARIR, MUKUND MARTAND | Independent | Senate, CA | Challenger or open seat | FEC |
| MOLNAR, ROBERT | Republican | Senate, CA | Challenger or open seat | FEC |
| MUNROE, MASSIE BS PE | Democratic | Senate, CA | Challenger or open seat | FEC |
| MYERS, GAR | Independent | Senate, CA | Challenger or open seat | FEC |
| PALZER, THOMAS EDWARD | Republican | Senate, CA | Challenger or open seat | FEC |
| PARKER, JOHN | W | Senate, CA | Challenger or open seat | FEC |
| PETERS, HERBERT G. | Democratic | Senate, CA | Challenger or open seat | FEC |
| PYBRUM, STEVEN M | Republican | Senate, CA | Challenger or open seat | FEC |
| QUINTANA, BRIAN | Democratic | Senate, CA | Challenger or open seat | FEC |
| RAMIREZ, AL | Republican | Senate, CA | Challenger or open seat | FEC |
| ROBERTSON, LOGAN GRAHAM | Republican | Senate, CA | Challenger or open seat | FEC |
| RODGERS, EMORY | Democratic | Senate, CA | Challenger or open seat | FEC |
| ROSEBERRY, KAREN | Republican | Senate, CA | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | Senate, CA | Challenger or open seat | FEC |
| SHI, LING LING | NPA | Senate, CA | Challenger or open seat | FEC |
| STOKES, STEVE | Democratic | Senate, CA | Challenger or open seat | FEC |
| SUNDHEIM, GEORGE 'DUF' | Republican | Senate, CA | Challenger or open seat | FEC |
| SWAIM, JASON ALAN | Independent | Senate, CA | Challenger or open seat | FEC |
| UNZ, RON | Republican | Senate, CA | Challenger or open seat | FEC |
| VAN RAAM, DOUGLAS SCOTT | FSP | Senate, CA | Challenger or open seat | FEC |
| VINEBERG, SCOTT | Independent | Senate, CA | Challenger or open seat | FEC |
| WILLIAMSON, JARRELL | Republican | Senate, CA | Challenger or open seat | FEC |
| WYMAN, PHILLIP D | Republican | Senate, CA | Challenger or open seat | FEC |
| YANG, GEORGE C. | Republican | Senate, CA | Challenger or open seat | FEC |
House
| Candidate | Party | Seat | Status | Source |
|---|---|---|---|---|
| HUBER, ALYSON | Democratic | House, CA | Challenger or open seat | FEC |
| DAVIDSON, STIEVEN LEE | Republican | House, CA | Challenger or open seat | FEC |
| ESTRADA, LUIS CARLOS | Democratic | House, CA | Challenger or open seat | FEC |
| VAN WHY, MEGAN NICHOLE | OTH | House, CA | Challenger or open seat | FEC |
| WHITE, JEFFERY SAALIK | Republican | House, CA | Challenger or open seat | FEC |
| AANESTAD, SAMUEL | Republican | House, CA district 1 | Challenger or open seat | FEC |
| BRANCA, ALBERT JAMES | Republican | House, CA district 1 | Challenger or open seat | FEC |
| GERLACH, JEFFREY D | NPA | House, CA district 1 | Challenger or open seat | FEC |
| HALL, HEIDI | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| LAMALFA, DOUG | Republican | House, CA district 1 | Incumbent | FEC |
| LEVINE, DAN | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| MONTES, JOSEPH | Republican | House, CA district 1 | Challenger or open seat | FEC |
| OXLEY, GARY ALLEN | Republican | House, CA district 1 | Challenger or open seat | FEC |
| REED, JAMES E | Democratic | House, CA district 1 | Challenger or open seat | FEC |
| WOLMAN, CAROL STONE | Green | House, CA district 1 | Challenger or open seat | FEC |
| WRIGHT, DOUGLAS A. | Republican | House, CA district 1 | Challenger or open seat | FEC |
| CAFFREY, ANDREW AUGUSTINE IV | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| CAFFREY, ANDY | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| CLARKE, BROOKE J | Unknown | House, CA district 2 | Challenger or open seat | FEC |
| COURTNEY, WILLIAM L | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| HENNEMANN, RAYMOND G | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| HUFFMAN, JARED | Democratic | House, CA district 2 | Incumbent | FEC |
| JACOBSON, JOHN | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| LAWSON, STACEY | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| MENSING, DALE KENNETH | Republican | House, CA district 2 | Challenger or open seat | FEC |
| SCHRODE, ERIN AZARIA | Democratic | House, CA district 2 | Challenger or open seat | FEC |
| WOOKEY, MATTHEW ROBERT | NPA | House, CA district 2 | Challenger or open seat | FEC |
| BERA, AMERISH | Democratic | House, CA district 3 | Incumbent | FEC |
| CLEEK, N EUGENE MD | Republican | House, CA district 3 | Challenger or open seat | FEC |
| CORE, TIMOTHY JAMES | Republican | House, CA district 3 | Challenger or open seat | FEC |
| DETERT, RYAN | Republican | House, CA district 3 | Challenger or open seat | FEC |
| FAVIS, STEVE DONALD | Independent | House, CA district 3 | Challenger or open seat | FEC |
| HARTER, RYAN | Independent | House, CA district 3 | Challenger or open seat | FEC |
| LOGUE, DANIEL | Republican | House, CA district 3 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 3 | Challenger or open seat | FEC |
| DERLET, ROBERT WAYNE | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| MOORE, ARTHUR S | Republican | House, CA district 4 | Challenger or open seat | FEC |
| THOMPSON, MIKE | Democratic | House, CA district 4 | Incumbent | FEC |
| UPPAL, JACK | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| WHITE, SEAN | Democratic | House, CA district 4 | Challenger or open seat | FEC |
| BARKLEY, MICHAEL JAMES | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| CILLEY, STEWART JOHN | Republican | House, CA district 5 | Challenger or open seat | FEC |
| MCCLINTOCK, THOMAS | Republican | House, CA district 5 | Incumbent | FEC |
| PALSSON, NILS IAN | NOP | House, CA district 5 | Challenger or open seat | FEC |
| POLING, ALEX | Democratic | House, CA district 5 | Challenger or open seat | FEC |
| SANTAMARIA, CARLOS J | Republican | House, CA district 5 | Challenger or open seat | FEC |
| EVANS, ROBERT S | Republican | House, CA district 6 | Challenger or open seat | FEC |
| GALVAN, MARIO | None | House, CA district 6 | Challenger or open seat | FEC |
| JEFFERSON, DELMA | Democratic | House, CA district 6 | Challenger or open seat | FEC |
| LUTALO, RONALD MUWEREZA SR | Republican | House, CA district 6 | Challenger or open seat | FEC |
| SERETSKIY, YURIY | NON | House, CA district 6 | Challenger or open seat | FEC |
| SMITT, ERIK | Republican | House, CA district 6 | Challenger or open seat | FEC |
| BIRMAN, IGOR A | Republican | House, CA district 7 | Challenger or open seat | FEC |
| EMKEN, ELIZABETH | Republican | House, CA district 7 | Challenger or open seat | FEC |
| JONES, SCOTT | Republican | House, CA district 7 | Challenger or open seat | FEC |
| KIPUKE, OMBA | Republican | House, CA district 7 | Challenger or open seat | FEC |
| LUNGREN, DANIEL E. | Republican | House, CA district 7 | Challenger or open seat | FEC |
| MATSUI, DORIS | Democratic | House, CA district 7 | Incumbent | FEC |
| MCCONNELL, CAMDEN | Libertarian | House, CA district 7 | Challenger or open seat | FEC |
| OSE, DOUG | Republican | House, CA district 7 | Challenger or open seat | FEC |
| TUMA, DOUGLAS ARTHUR | Libertarian | House, CA district 7 | Challenger or open seat | FEC |
| CHAVEZ- O'CHOA, BRIAN | Republican | House, CA district 8 | Challenger or open seat | FEC |
| CONAWAY, ROBERT DEAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| CONOVER, RODNEY LEE | Republican | House, CA district 8 | Challenger or open seat | FEC |
| COOK, PAUL | Republican | House, CA district 8 | Incumbent | FEC |
| DONNELLY, TIM | Republican | House, CA district 8 | Challenger or open seat | FEC |
| GARAMENDI, JOHN | Democratic | House, CA district 8 | Incumbent | FEC |
| HANNOSH, PAUL | Republican | House, CA district 8 | Challenger or open seat | FEC |
| LAPLANTE, ROGER ALAN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| LEE, ODESSIA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| LIBERATORE, PHILIP LAURENCE | Republican | House, CA district 8 | Challenger or open seat | FEC |
| MITZELFELT, BRAD | Republican | House, CA district 8 | Challenger or open seat | FEC |
| PINKERTON, JOHN | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| PINKERTON, JOHN RAYMOND III | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| RAMIREZ-DEAN, RITA | Democratic | House, CA district 8 | Challenger or open seat | FEC |
| WALSH, DANA | Republican | House, CA district 8 | Challenger or open seat | FEC |
| AMADOR, ANTONIO C | Republican | House, CA district 9 | Challenger or open seat | FEC |
| APPLEBY, ALEXANDER E | Libertarian | House, CA district 9 | Challenger or open seat | FEC |
| COLANGELO, STEVE ANTHONY | Republican | House, CA district 9 | Challenger or open seat | FEC |
| MCNERNEY, JERRY | Democratic | House, CA district 9 | Incumbent | FEC |
| NANCE, KATHRYN D | Republican | House, CA district 9 | Challenger or open seat | FEC |
| SILVA, ROBERT LEO II MA | Republican | House, CA district 9 | Challenger or open seat | FEC |
| ATTWOOD, TIFFANY | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| CLOWARD, JEREMY | Green | House, CA district 10 | Challenger or open seat | FEC |
| DENHAM, JEFF | Republican | House, CA district 10 | Incumbent | FEC |
| DESAULNIER, MARK | Democratic | House, CA district 10 | Incumbent | FEC |
| EGGMAN, MICHAEL RAY | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| HERNANDEZ, JOSE M | Democratic | House, CA district 10 | Challenger or open seat | FEC |
| HODGES, ROBERT L | Republican | House, CA district 10 | Challenger or open seat | FEC |
| VANGUNDY, GINO | Unknown | House, CA district 10 | Challenger or open seat | FEC |
| DAYSOG, TONY | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| FULLER-KENDALL, VIRGINIA | OTH | House, CA district 11 | Challenger or open seat | FEC |
| GOEHRING, BRAD | Republican | House, CA district 11 | Challenger or open seat | FEC |
| MILLER, GEORGE | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| PELOSI, NANCY | Democratic | House, CA district 11 | Incumbent | FEC |
| PETERSEN, ROGER | Republican | House, CA district 11 | Challenger or open seat | FEC |
| QUANG, TUE PHAN | Republican | House, CA district 11 | Challenger or open seat | FEC |
| SUDDUTH, CHERYL | Democratic | House, CA district 11 | Challenger or open seat | FEC |
| DAVIES, CURTIS R | Republican | House, CA district 12 | Challenger or open seat | FEC |
| DENNIS, JOHN | Republican | House, CA district 12 | Challenger or open seat | FEC |
| HARDING, JOSEPH MICHAEL | W | House, CA district 12 | Challenger or open seat | FEC |
| HERMANSON, BARRY | Green | House, CA district 12 | Challenger or open seat | FEC |
| LARA, FRANK | PAF | House, CA district 12 | Challenger or open seat | FEC |
| LEE, BARBARA | Democratic | House, CA district 12 | Incumbent | FEC |
| MILLER, ROBERT | Republican | House, CA district 12 | Challenger or open seat | FEC |
| PETERSON, DAVID | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| PICUS, PRESTON | Independent | House, CA district 12 | Challenger or open seat | FEC |
| STEGER, MICHAEL G | Democratic | House, CA district 12 | Challenger or open seat | FEC |
| THORSSON, ANTHONY JOHN "DESMOND" | OTH | House, CA district 12 | Challenger or open seat | FEC |
| CARO, SUZANNE M | Republican | House, CA district 13 | Challenger or open seat | FEC |
| JELINCIC, JUSTIN | Democratic | House, CA district 13 | Challenger or open seat | FEC |
| CARDENAS, ANGEL | Republican | House, CA district 14 | Challenger or open seat | FEC |
| SPEIER, JACKIE | Democratic | House, CA district 14 | Incumbent | FEC |
| SWALWELL, ERIC MICHAEL | Democratic | House, CA district 14 | Incumbent | FEC |
| BUSSELL, HUGH | Republican | House, CA district 15 | Challenger or open seat | FEC |
| CORBETT, ELLEN | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| STARK, FORTNEY HILLMAN JR | Democratic | House, CA district 15 | Challenger or open seat | FEC |
| TURNER, DANNY REID | Republican | House, CA district 15 | Challenger or open seat | FEC |
| BOTELHO, JOANNA LYNN GARCIA | Republican | House, CA district 16 | Challenger or open seat | FEC |
| ESHOO, ANNA G | Democratic | House, CA district 16 | Incumbent | FEC |
| GARCIA, MARK | Republican | House, CA district 16 | Challenger or open seat | FEC |
| MELTON, JOB EMANUEL | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| ROGERS, DAVID BRYAN | Republican | House, CA district 16 | Challenger or open seat | FEC |
| SAHAGUN, DANIEL | Republican | House, CA district 16 | Challenger or open seat | FEC |
| SIMITIAN, S JOSEPH | Democratic | House, CA district 16 | Challenger or open seat | FEC |
| TACHERRA, JOHNNY | Republican | House, CA district 16 | Challenger or open seat | FEC |
| CHANDLER, WILLIAM THARON | Independent | House, CA district 17 | Challenger or open seat | FEC |
| COHEN, RONALD H | Republican | House, CA district 17 | Challenger or open seat | FEC |
| HONDA, MIKE | Democratic | House, CA district 17 | Incumbent | FEC |
| KHANNA, ROHIT | Democratic | House, CA district 17 | Incumbent | FEC |
| KUO, PETER | Republican | House, CA district 17 | Challenger or open seat | FEC |
| OLIVERIO, PIERLUIGI | Democratic | House, CA district 17 | Challenger or open seat | FEC |
| SINGH, VANILA M | Republican | House, CA district 17 | Challenger or open seat | FEC |
| WATSON, KENNITA | Libertarian | House, CA district 17 | Challenger or open seat | FEC |
| FOX, RICHARD B | Republican | House, CA district 18 | Challenger or open seat | FEC |
| HARLOW, BOB | Democratic | House, CA district 18 | Challenger or open seat | FEC |
| LOFGREN, ZOE | Democratic | House, CA district 18 | Incumbent | FEC |
| LANCASTER, GORDON K CA | Republican | House, CA district 19 | Challenger or open seat | FEC |
| LEE, JOHNNY | Republican | House, CA district 19 | Challenger or open seat | FEC |
| PANETTA, JIMMY | Democratic | House, CA district 19 | Incumbent | FEC |
| BRUNER, MATTHEW | Independent | House, CA district 20 | Challenger or open seat | FEC |
| DIGBY, JACK | NPA | House, CA district 20 | Challenger or open seat | FEC |
| FARR, SAM | Democratic | House, CA district 20 | Incumbent | FEC |
| HAZE, ERNEST STEVEN | Democratic | House, CA district 20 | Challenger or open seat | FEC |
| HONEGGER, BARBARA | NPA | House, CA district 20 | Challenger or open seat | FEC |
| KABAT, RONALD P. | NPA | House, CA district 20 | Challenger or open seat | FEC |
| LUCIUS, CASEY | Republican | House, CA district 20 | Challenger or open seat | FEC |
| MCCARTHY, KEVIN | Republican | House, CA district 20 | Incumbent | FEC |
| MILLER, JOSHUA THOMAS COULSTON | Republican | House, CA district 20 | Challenger or open seat | FEC |
| QUINTANAR, SERAFIN | Republican | House, CA district 20 | Challenger or open seat | FEC |
| TAYLOR, JEFF | Republican | House, CA district 20 | Challenger or open seat | FEC |
| VIDAK, JAMES ANDREW | Republican | House, CA district 20 | Challenger or open seat | FEC |
| WILLIAMS, JOE | PAF | House, CA district 20 | Challenger or open seat | FEC |
| COSTA, JIM | Democratic | House, CA district 21 | Incumbent | FEC |
| HERNANDEZ, JOHN STEPHEN | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| HUERTA, EMILIO J. | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| PARRA, DANIEL | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| PEREZ, CONNIE | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| RENTERIA, AMANDA | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| RUBIO, MICHAEL | Democratic | House, CA district 21 | Challenger or open seat | FEC |
| SPEARS, LINDA MARIMARIE AKA "WHITEFEAT | Independent | House, CA district 21 | Challenger or open seat | FEC |
| ANDRES, TERESITA AYA | Unknown | House, CA district 22 | Challenger or open seat | FEC |
| CAMPOS, LOUIE J | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| CATANO, JOHN P | Republican | House, CA district 22 | Challenger or open seat | FEC |
| LEE, OTTO | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| MARRERO, SUZANNA AUGILERA | Democratic | House, CA district 22 | Challenger or open seat | FEC |
| NUNES, DEVIN G. | Republican | House, CA district 22 | Incumbent | FEC |
| SANTIAGO, ALBERTO ZUNIGA | Independent | House, CA district 22 | Challenger or open seat | FEC |
| VALADAO, DAVID | Republican | House, CA district 22 | Incumbent | FEC |
| DAVIDSON, JOHN | Republican | House, CA district 23 | Challenger or open seat | FEC |
| GARCIA, RAUL | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| HAGER, JOHN VICTOR | Independent | House, CA district 23 | Challenger or open seat | FEC |
| METTLER, KEN | Republican | House, CA district 23 | Challenger or open seat | FEC |
| MORRIS, GERALD A | Republican | House, CA district 23 | Challenger or open seat | FEC |
| PHILLIPS, TERRY | Independent | House, CA district 23 | Challenger or open seat | FEC |
| REED, WENDY | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ROSENBERGER, JUSTIN LEE | Independent | House, CA district 23 | Challenger or open seat | FEC |
| SANDOVAL, JESUS R | Democratic | House, CA district 23 | Challenger or open seat | FEC |
| ACHADJIAN, KHATCHIK | Republican | House, CA district 24 | Challenger or open seat | FEC |
| ALLEN, BRAD | Republican | House, CA district 24 | Challenger or open seat | FEC |
| CAPPS, LOIS G | Democratic | House, CA district 24 | Incumbent | FEC |
| CARBAJAL, SALUD O. | Democratic | House, CA district 24 | Incumbent | FEC |
| COYNE, PAUL H JR | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| FAREED, JUSTIN | Republican | House, CA district 24 | Challenger or open seat | FEC |
| FRANCISCO, DALE | Republican | House, CA district 24 | Challenger or open seat | FEC |
| FRASER, CHIP | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| GALLEGLY, ELTON | Republican | House, CA district 24 | Challenger or open seat | FEC |
| ISAKSON, STEVE WESLEY PHD | None | House, CA district 24 | Challenger or open seat | FEC |
| KOKKONEN, MATT | Republican | House, CA district 24 | Challenger or open seat | FEC |
| LUCAS, BENJAMIN | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| MALDONADO, ABEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| MARSHALL, SANDRA | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| MARTINEZ, JILL MARIE | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| MITCHUM, CHRISTOPHER | Republican | House, CA district 24 | Challenger or open seat | FEC |
| OSHINS, JEFF | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| OSTRANDER, WILLIAM | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| SCHNEIDER, HELENE | Democratic | House, CA district 24 | Challenger or open seat | FEC |
| TENENBAUM, MICHAEL | Republican | House, CA district 24 | Challenger or open seat | FEC |
| UEBERSAX, JOHN | NPA | House, CA district 24 | Challenger or open seat | FEC |
| ACOSTA, DANTE | Republican | House, CA district 25 | Challenger or open seat | FEC |
| BOMBERGER, JEFFREY | Independent | House, CA district 25 | Challenger or open seat | FEC |
| BRUCE, DAVID KOSTER | Libertarian | House, CA district 25 | Challenger or open seat | FEC |
| CAFORIO, BRYAN | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| GAMBLE, VENICE JAYMES II | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| GUTZEIT, MARIA | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| KNIGHT, STEVE | Republican | House, CA district 25 | Incumbent | FEC |
| LEONARD, HARRISON | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MCKEON, HOWARD P "BUCK" | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MOFFATT, JEFFREY | Republican | House, CA district 25 | Challenger or open seat | FEC |
| MOLINA, LAURA | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| PUENTES, JORGE RICARDO JR | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| ROGERS, LEE C. | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| RUIZ, RAUL | Democratic | House, CA district 25 | Incumbent | FEC |
| STRICKLAND, ANTHONY A | Republican | House, CA district 25 | Challenger or open seat | FEC |
| THOMAS, EVAN CHARLES | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| VINCE, LOU | Democratic | House, CA district 25 | Challenger or open seat | FEC |
| WRIGHT, CATHIE | Republican | House, CA district 25 | Challenger or open seat | FEC |
| WYMAN, PHILLIP D | Republican | House, CA district 25 | Challenger or open seat | FEC |
| BROWN, ROBERT | None | House, CA district 26 | Challenger or open seat | FEC |
| BROWNLEY, JULIA | Democratic | House, CA district 26 | Incumbent | FEC |
| DAGNESSES, RAFAEL | Republican | House, CA district 26 | Challenger or open seat | FEC |
| GORELL, JEFF | Republican | House, CA district 26 | Challenger or open seat | FEC |
| KALEMKARIAN, TIMOTHY CHARLES | Republican | House, CA district 26 | Challenger or open seat | FEC |
| KMIEC, DOUGLAS W | Independent | House, CA district 26 | Challenger or open seat | FEC |
| THAYNE, DAVID CRUZ | Democratic | House, CA district 26 | Challenger or open seat | FEC |
| BARAJAS, RAMON MISTER III | Republican | House, CA district 27 | Challenger or open seat | FEC |
| DARIAN, BRUCE HARRY | FED | House, CA district 27 | Challenger or open seat | FEC |
| ORSWELL, JACK | Republican | House, CA district 27 | Challenger or open seat | FEC |
| SWEENEY, TIM | NPA | House, CA district 27 | Challenger or open seat | FEC |
| CHU, JUDY | Democratic | House, CA district 28 | Incumbent | FEC |
| GRAY, CASEY LOGSDON | Republican | House, CA district 28 | Challenger or open seat | FEC |
| KALBFELD, JONATHAN RYAN | Democratic | House, CA district 28 | Challenger or open seat | FEC |
| SOLIS, LENORE | Republican | House, CA district 28 | Challenger or open seat | FEC |
| STOKES, STEVE | Independent | House, CA district 28 | Challenger or open seat | FEC |
| WORMAN, JENNY | Republican | House, CA district 28 | Challenger or open seat | FEC |
| ALARCON, RICHARD ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| BERNAL, BENITO BENNY | Republican | House, CA district 29 | Challenger or open seat | FEC |
| CARDENAS, TONY | Democratic | House, CA district 29 | Incumbent | FEC |
| CUSHING, WILLIAM (BILL) P | Libertarian | House, CA district 29 | Challenger or open seat | FEC |
| GAMBLE, VENICE JAYMES II | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| GUZMAN, DAVID | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| HERNANDEZ, DAVID RAYMOND | Republican | House, CA district 29 | Challenger or open seat | FEC |
| LEADER, WILLIAM | Republican | House, CA district 29 | Challenger or open seat | FEC |
| PORTANTINO, ANTHONY | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| SHAMMAS, JOSEPH IVARO | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| VALDEZ, RICHARD | Democratic | House, CA district 29 | Challenger or open seat | FEC |
| BERMAN, HOWARD L | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| DAVIS, LUKE | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| FLUTIE, ROBERT A | Republican | House, CA district 30 | Challenger or open seat | FEC |
| GENOVESE, SAL | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| KLEINMAN, PABLO | Republican | House, CA district 30 | Challenger or open seat | FEC |
| LITCHMAN, MARC | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| PATRICK, PATREA | Democratic | House, CA district 30 | Challenger or open seat | FEC |
| REED SR., MARK STEVEN SR. | Republican | House, CA district 30 | Challenger or open seat | FEC |
| REED, MARK | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SCHIFF, ADAM | Democratic | House, CA district 30 | Incumbent | FEC |
| SHELLEY, SUSAN | Republican | House, CA district 30 | Challenger or open seat | FEC |
| SINGH, NAVRAJ | Republican | House, CA district 30 | Challenger or open seat | FEC |
| TOWNSEND, CHRISTOPHER DAVID | Republican | House, CA district 30 | Challenger or open seat | FEC |
| AHMED, KAISAR | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CHABOT, PAUL R | Republican | House, CA district 31 | Challenger or open seat | FEC |
| FLYNN, SEAN | Republican | House, CA district 31 | Challenger or open seat | FEC |
| GOOCH, LESLI E MCCOLLUM | Republican | House, CA district 31 | Challenger or open seat | FEC |
| MILLER, GARY G | Republican | House, CA district 31 | Challenger or open seat | FEC |
| NAPOLITANO, GRACE | Democratic | House, CA district 31 | Incumbent | FEC |
| REYES, ELOISE GOMEZ | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| SMITH, STEPHEN CARLTON | Republican | House, CA district 31 | Challenger or open seat | FEC |
| TILLMAN, DANNY | Democratic | House, CA district 31 | Challenger or open seat | FEC |
| CEDILLO, GILBERT | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| FISHER, GORDAN E. | Republican | House, CA district 32 | Challenger or open seat | FEC |
| HERNANDEZ, ROGER | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| LUTZ, MARY ANN | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| RAB, AEJAZ (RAJI) | Democratic | House, CA district 32 | Challenger or open seat | FEC |
| SCARBOROUGH, LARRY DEAN | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SCHMERLING, EDWARD | Republican | House, CA district 32 | Challenger or open seat | FEC |
| SHERMAN, BRAD | Democratic | House, CA district 32 | Incumbent | FEC |
| SOLIS, HILDA | Democratic | House, CA district 32 | Incumbent | FEC |
| AGUILAR, PETE | Democratic | House, CA district 33 | Incumbent | FEC |
| BLOOMFIELD, BILL | Independent | House, CA district 33 | Challenger or open seat | FEC |
| CARR, ELAN S. | Republican | House, CA district 33 | Challenger or open seat | FEC |
| COLLETT, STEPHEN (STEVE) | Libertarian | House, CA district 33 | Challenger or open seat | FEC |
| DAVID, CHRISTOPHER | Independent | House, CA district 33 | Challenger or open seat | FEC |
| DEGROOT, BENJAMIN | Independent | House, CA district 33 | Challenger or open seat | FEC |
| FLAHERTY, VINCE | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| GILANI, LILY | Republican | House, CA district 33 | Challenger or open seat | FEC |
| GREUEL, WENDY J | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| HOLMES, KRISTIE | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| KANUTH, DAVID | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| KILPATRICK, ROBERT DONALD | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MILLER, MATTHEW LOUIS | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| MONTOYA, LUIS | Republican | House, CA district 33 | Challenger or open seat | FEC |
| MULVANEY, BARBARA | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| SHAPIRO, MICHAEL | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WAXMAN, HENRY A | Democratic | House, CA district 33 | Challenger or open seat | FEC |
| WILLIAMSON, MARIANNE | None | House, CA district 33 | Challenger or open seat | FEC |
| WRIGHT, KENNETH | Republican | House, CA district 33 | Challenger or open seat | FEC |
| ARAMAYO, VANESSA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BARAJAS, RAMON III | Republican | House, CA district 34 | Challenger or open seat | FEC |
| BECERRA, XAVIER | Democratic | House, CA district 34 | Incumbent | FEC |
| CAMPOVERDI, ALEJANDRA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARMONA, ARTURO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| CARRILLO DONO, WENDY MARIA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| EDWARDS, ADRIENNE | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| HERNANDEZ, SARA | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MAC, STEVEN | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| MEJIA, KENNETH | Green | House, CA district 34 | Challenger or open seat | FEC |
| MEZA, RAYMOND ANTHONY JR. | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| PEREZ, JOHN A | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| SIGANPORIA, KARL | Republican | House, CA district 34 | Challenger or open seat | FEC |
| SOTOMAYOR, ARMANDO | Democratic | House, CA district 34 | Challenger or open seat | FEC |
| BACA, JOE | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| FISCHELLA, TYLER R | Republican | House, CA district 35 | Challenger or open seat | FEC |
| GAGNIER, CHRISTINA | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| MCLEOD, GLORIA NEGRETE | Democratic | House, CA district 35 | Challenger or open seat | FEC |
| TORRES, NORMA | Democratic | House, CA district 35 | Incumbent | FEC |
| BONO MACK, MARY | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BOWEN, DEBRA | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| CONTRERAS, MARK ANTHONY | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| KEALY, DWIGHT | Republican | House, CA district 36 | Challenger or open seat | FEC |
| LAW, JAMES | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| LIEU, TED | Democratic | House, CA district 36 | Incumbent | FEC |
| MONTANO, MARIA E | Republican | House, CA district 36 | Challenger or open seat | FEC |
| NESTANDE, BRIAN | Republican | House, CA district 36 | Challenger or open seat | FEC |
| PETERSEN, MATT | Democratic | House, CA district 36 | Challenger or open seat | FEC |
| SHARP, ANDREW JAMES | Republican | House, CA district 36 | Challenger or open seat | FEC |
| STONE, JEFFREY E | Republican | House, CA district 36 | Challenger or open seat | FEC |
| THOMPSON, KIRK WAYNE | Republican | House, CA district 36 | Challenger or open seat | FEC |
| WATSON, LUPE RAMOS | Republican | House, CA district 36 | Challenger or open seat | FEC |
| WHITEHEAD, PAUL | Republican | House, CA district 36 | Challenger or open seat | FEC |
| WOLKOWICZ, STEPHAN "STEVEN" | Republican | House, CA district 36 | Challenger or open seat | FEC |
| BASS, KAREN | Democratic | House, CA district 37 | Incumbent | FEC |
| DIBS, NICHOLAS (NICK) | Independent | House, CA district 37 | Challenger or open seat | FEC |
| EVANS, MERVIN LEON | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| GRISOLIA, BILL | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| HASAN, SHARIFF M | Republican | House, CA district 37 | Challenger or open seat | FEC |
| KANALEY, JOHN M | Republican | House, CA district 37 | Challenger or open seat | FEC |
| KING, R ADAM | Republican | House, CA district 37 | Challenger or open seat | FEC |
| SCHIPSKE, GERRIE | Democratic | House, CA district 37 | Challenger or open seat | FEC |
| ADAMS, SCOTT MICHAEL | Independent | House, CA district 38 | Challenger or open seat | FEC |
| CAMPOS, BENJAMIN | Republican | House, CA district 38 | Challenger or open seat | FEC |
| DOWNING, RYAN | Republican | House, CA district 38 | Challenger or open seat | FEC |
| TURNER, TRACY LYNN | Independent | House, CA district 38 | Challenger or open seat | FEC |
| VAUGHN, ROBERT WILLIAM | Republican | House, CA district 38 | Challenger or open seat | FEC |
| ANDERSON, PETER O | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| CULLUM, JOHN J | Republican | House, CA district 39 | Challenger or open seat | FEC |
| MULATTIERI, D'MARIE | Unknown | House, CA district 39 | Challenger or open seat | FEC |
| MURDOCK, BRETT | Democratic | House, CA district 39 | Challenger or open seat | FEC |
| ROYCE, ED | Republican | House, CA district 39 | Incumbent | FEC |
| TAKANO, MARK | Democratic | House, CA district 39 | Incumbent | FEC |
| CALVERT, KEN | Republican | House, CA district 40 | Incumbent | FEC |
| GONZALEZ, ROMAN GABRIEL | NPA | House, CA district 40 | Challenger or open seat | FEC |
| ROYBAL-ALLARD, LUCILLE | Democratic | House, CA district 40 | Incumbent | FEC |
| ADAMS, STEVE | Republican | House, CA district 41 | Challenger or open seat | FEC |
| FOX, RANDY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| FRANCO, VERONICA | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| LEWIS, JERRY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| RYAN, CODY | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SANCHEZ, LINDA | Democratic | House, CA district 41 | Incumbent | FEC |
| SHEPHERD, DOUG | Republican | House, CA district 41 | Challenger or open seat | FEC |
| SHERIDAN, TIMOTHY J | Democratic | House, CA district 41 | Challenger or open seat | FEC |
| CONDLEY, KERRI | None | House, CA district 42 | Challenger or open seat | FEC |
| NOVAK, CURT | OTH | House, CA district 42 | Challenger or open seat | FEC |
| RAND, ROBERT GUY | None | House, CA district 42 | Challenger or open seat | FEC |
| SHEPSTON, RONALD W II | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| WILLIAMSON, MICHAEL DALE | Democratic | House, CA district 42 | Challenger or open seat | FEC |
| CHEADLE, GREGORY | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| FLORES, BOB | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| NAVARRO, OMAR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| WATERS, MAXINE | Democratic | House, CA district 43 | Incumbent | FEC |
| WIGGINS, CHRISTOPHER BLAKE | Democratic | House, CA district 43 | Challenger or open seat | FEC |
| WOOD, JOHN JR | Republican | House, CA district 43 | Challenger or open seat | FEC |
| BARRAGAN, NANETTE | Democratic | House, CA district 44 | Incumbent | FEC |
| CASTILLO, CHRISTOPHER | Republican | House, CA district 44 | Challenger or open seat | FEC |
| DE MAURICIO, MICHAEL | NPA | House, CA district 44 | Challenger or open seat | FEC |
| DELGADILLO, MARTHA C. | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| GIBSON, CHARLOTTE DIANE | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| GRIFFIN, MORRIS F | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| HAHN, JANICE | Democratic | House, CA district 44 | Incumbent | FEC |
| HALL, ISADORE III | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| JOYA, ANALILIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| MUSANTE, MARCUS | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| ORTIZ, SYLVIA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| ORTON, WILLIAM R. "BILL" | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RICHARDSON, LAURA | Democratic | House, CA district 44 | Challenger or open seat | FEC |
| RIGGS, CHRISTOPHER SCOTT | Republican | House, CA district 44 | Challenger or open seat | FEC |
| SIEGEL, RONALD | Republican | House, CA district 44 | Challenger or open seat | FEC |
| BORNSTEIN, JULIE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| CAMPBELL, JOHN BT III | Republican | House, CA district 45 | Challenger or open seat | FEC |
| COTTON, STANLEY S | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| GOURON, MAX M.D. | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| HUNSICKER, DAVID E | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| LAUTEN, ROBERT EDMUND | Independent | House, CA district 45 | Challenger or open seat | FEC |
| LEAVENS, DREW EUGENE | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| MOORLACH, JOHN | Republican | House, CA district 45 | Challenger or open seat | FEC |
| POUGNET, STEPHEN P | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| RATHS, GREGORY GERARD | Republican | House, CA district 45 | Challenger or open seat | FEC |
| VARASTEH, RON | Democratic | House, CA district 45 | Challenger or open seat | FEC |
| WALTERS, MIMI | Republican | House, CA district 45 | Incumbent | FEC |
| ARNOLD, KENNETH | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| BRANDMAN, JORDAN | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| CONTRERAS, LOUIE A | Republican | House, CA district 46 | Challenger or open seat | FEC |
| CORREA, LOU | Democratic | House, CA district 46 | Incumbent | FEC |
| DUNN, JOSEPH | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| GAONA, RODOLFO RUDY | Republican | House, CA district 46 | Challenger or open seat | FEC |
| MARIN, NANCY TRINIDAD | NPA | House, CA district 46 | Challenger or open seat | FEC |
| NGUYEN, BAO QUOC | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| NICK, ADAM | Republican | House, CA district 46 | Challenger or open seat | FEC |
| PETERSON, BOB | Republican | House, CA district 46 | Challenger or open seat | FEC |
| ROCHA, JORGE | Independent | House, CA district 46 | Challenger or open seat | FEC |
| SANCHEZ, HEBERTO M | Democratic | House, CA district 46 | Challenger or open seat | FEC |
| SANCHEZ, LORETTA | Democratic | House, CA district 46 | Incumbent | FEC |
| SCHOTT, LYNN | Republican | House, CA district 46 | Challenger or open seat | FEC |
| ST JOHN, RONALD R | Republican | House, CA district 46 | Challenger or open seat | FEC |
| VAZQUEZ, CARLOS ALBERTO | Republican | House, CA district 46 | Challenger or open seat | FEC |
| AVILA, ROSIE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BAUGH, SCOTT | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BIEDERMANN, DINA LOUISE | Republican | House, CA district 47 | Challenger or open seat | FEC |
| CORONADO, ALEXANDRIA | Republican | House, CA district 47 | Challenger or open seat | FEC |
| DELONG, GARY | Republican | House, CA district 47 | Challenger or open seat | FEC |
| KAHN, SANFORD W | Republican | House, CA district 47 | Challenger or open seat | FEC |
| LOWENTHAL, ALAN | Democratic | House, CA district 47 | Incumbent | FEC |
| MATHEWS, E. PETER | Democratic | House, CA district 47 | Challenger or open seat | FEC |
| WHALLON, ANDREW | Republican | House, CA district 47 | Challenger or open seat | FEC |
| BANUELOS, ROBERT JOHN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| BURNS, DAVID | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| COX, CHRISTOPHER | Republican | House, CA district 48 | Challenger or open seat | FEC |
| GILCHRIST, JAMES W | CST | House, CA district 48 | Challenger or open seat | FEC |
| ISSA, DARRELL | Republican | House, CA district 48 | Incumbent | FEC |
| MUNZING, MICHAEL ANDREW | Republican | House, CA district 48 | Challenger or open seat | FEC |
| PACKARD, RONALD C | Republican | House, CA district 48 | Challenger or open seat | FEC |
| ROBERTS, BOYD LACHLAN | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| ROHRABACHER, DANA | Republican | House, CA district 48 | Incumbent | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SAVARY, SUZANNE JOYCE | Democratic | House, CA district 48 | Challenger or open seat | FEC |
| SCHLAR, ALAN MARK | OTH | House, CA district 48 | Challenger or open seat | FEC |
| APPLEGATE, DOUGLAS LOREN | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| MOORE, JOHNNY | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| NOVINEC, ALBIN DENNIS | NPA | House, CA district 49 | Challenger or open seat | FEC |
| PEISER, DAVE | Democratic | House, CA district 49 | Challenger or open seat | FEC |
| WINGO, RYAN GLENN | NPA | House, CA district 49 | Challenger or open seat | FEC |
| HUNTER, DUNCAN D | Republican | House, CA district 50 | Incumbent | FEC |
| KIMBER, JAMES HARVEY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| LINNELL, TERRI RUTH | Republican | House, CA district 50 | Challenger or open seat | FEC |
| MALLOY, JEFFREY | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| MEISTERLIN, SCOTT C | Republican | House, CA district 50 | Challenger or open seat | FEC |
| PETERS, SCOTT | Democratic | House, CA district 50 | Incumbent | FEC |
| POWELL, MARK EDWARD | OTH | House, CA district 50 | Challenger or open seat | FEC |
| SCHECHTER, STEVE | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| SECOR, DAVID B | Democratic | House, CA district 50 | Challenger or open seat | FEC |
| SHIOURA, FUJI H. | NPA | House, CA district 50 | Challenger or open seat | FEC |
| BROOKS, JOHN L II | Democratic | House, CA district 51 | Challenger or open seat | FEC |
| GIONIS, XANTHI | Republican | House, CA district 51 | Challenger or open seat | FEC |
| HIDALGO, JUAN M JR | Republican | House, CA district 51 | Challenger or open seat | FEC |
| JOY, DAVID LEE | Republican | House, CA district 51 | Challenger or open seat | FEC |
| MEADE, STEPHEN | Republican | House, CA district 51 | Challenger or open seat | FEC |
| MERCADO, JUAN | None | House, CA district 51 | Challenger or open seat | FEC |
| SANCHEZ, CARLOS J | Republican | House, CA district 51 | Challenger or open seat | FEC |
| ALLVORD, TERRY | Republican | House, CA district 52 | Challenger or open seat | FEC |
| ATKINSON, JACQUIE | Republican | House, CA district 52 | Challenger or open seat | FEC |
| BILBRAY, BRIAN PHILLIP | Republican | House, CA district 52 | Challenger or open seat | FEC |
| CANADA, MIKE | Republican | House, CA district 52 | Challenger or open seat | FEC |
| DEMAIO, CARL | Republican | House, CA district 52 | Challenger or open seat | FEC |
| GITSHAM, DENISE | Republican | House, CA district 52 | Challenger or open seat | FEC |
| HORST, JOHN H | Republican | House, CA district 52 | Challenger or open seat | FEC |
| JORGENSEN, KIRK | Republican | House, CA district 52 | Challenger or open seat | FEC |
| SIMON, FRED J JR MD | Republican | House, CA district 52 | Challenger or open seat | FEC |
| VARGAS, JUAN C. | Democratic | House, CA district 52 | Incumbent | FEC |
| ARRINGTON, RANDALL STEVEN PHD | Republican | House, CA district 53 | Challenger or open seat | FEC |
| ASH, JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
| DAVIS, SUSAN A. | Democratic | House, CA district 53 | Incumbent | FEC |
| MARCHESE, JOEL ALFRED | Republican | House, CA district 53 | Challenger or open seat | FEC |
| MENDOZA, MATTHEW JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
| VELTMEYER, JAMES | Republican | House, CA district 53 | Challenger or open seat | FEC |
| WALPERT, NICHOLAS "NICK" | Democratic | House, CA district 53 | Challenger or open seat | FEC |
| WILSKE, LARRY ALBERT | Republican | House, CA district 53 | Challenger or open seat | FEC |