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.
O'BRIEN, MICHAEL
Individual donor · BROOKLYN, NY· NOT EMPLOYED (RETIRED)
Summary by party and cycle
| Cycle | Candidate party | For | Against |
|---|---|---|---|
| 2026 | Democratic | $6,800 | $0 |
| 2024 | Democratic | $19,935 | $0 |
| 2022 | Democratic | $9,779 | $0 |
| 2020 | Democratic | $3,510 | $0 |
| 2018 | Democratic | $325 | $0 |
| 2018 | Independent | $200 | $0 |
Details by candidate
| Cycle | Candidate | Party | How | For or against | Amount | Gifts | Latest | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | PAPPAS, CHRIS | Democratic | Contribution | For | $900 | 10 | 2026-08-12 | latest filing |
| 2026 | OSSOFF, T. JONATHAN | Democratic | Contribution | For | $800 | 9 | 2026-05-07 | latest filing |
| 2026 | WARNER, MARK ROBERT | Democratic | Contribution | For | $600 | 10 | 2026-04-15 | latest filing |
| 2026 | STRATTON, JULIANA | Democratic | Contribution | For | $600 | 7 | 2026-05-21 | latest filing |
| 2026 | BROWN, SHERROD | Democratic | Contribution | For | $550 | 6 | 2026-06-25 | latest filing |
| 2026 | CORTEZ MASTO, CATHERINE | Democratic | Contribution | For | $450 | 5 | 2026-02-04 | latest filing |
| 2026 | MCMORROW, MALLORY | Democratic | Contribution | For | $450 | 9 | 2026-06-12 | latest filing |
| 2026 | MURRAY, PATTY | Democratic | Contribution | For | $400 | 4 | 2026-06-02 | latest filing |
| 2026 | CANTWELL, MARIA | Democratic | Contribution | For | $300 | 3 | 2026-06-05 | latest filing |
| 2026 | DUCKWORTH, L. TAMMY | Democratic | Contribution | For | $300 | 3 | 2026-06-03 | latest filing |
| 2026 | CRAIG, ANGIE | Democratic | Contribution | For | $250 | 5 | 2026-07-10 | latest filing |
| 2026 | KRISHNAMOORTHI, S. RAJA | Democratic | Contribution | For | $200 | 4 | 2025-04-06 | latest filing |
| 2026 | GOLDEN, JARED | Democratic | Contribution | For | $200 | 4 | 2025-10-24 | latest filing |
| 2026 | ALLRED, COLIN | Democratic | Contribution | For | $200 | 2 | 2025-11-11 | latest filing |
| 2026 | BALDWIN, TAMMY | Democratic | Contribution | For | $200 | 2 | 2026-06-01 | latest filing |
| 2026 | KELLY, MARK | Democratic | Contribution | For | $100 | 1 | 2026-01-28 | filing |
| 2026 | GALLEGO, RUBEN | Democratic | Contribution | For | $100 | 1 | 2026-04-08 | filing |
| 2026 | COOPER, ROY | Democratic | Contribution | For | $100 | 1 | 2026-06-04 | filing |
| 2026 | MARKEY, EDWARD SEN. | Democratic | Contribution | For | $50 | 1 | 2026-04-01 | filing |
| 2026 | VINDMAN, ALEXANDER | Democratic | Contribution | For | $50 | 1 | 2026-07-17 | filing |
| 2024 | CASEY, ROBERT P. JR. | Democratic | Contribution | For | $6,425 | 204 | 2024-11-18 | latest filing |
| 2024 | PELOSI, NANCY | Democratic | Contribution | For | $2,756 | 34 | 2024-03-28 | latest filing |
| 2024 | ALLRED, COLIN | Democratic | Contribution | For | $1,680 | 44 | 2024-08-13 | latest filing |
| 2024 | GALLEGO, RUBEN | Democratic | Contribution | For | $983 | 26 | 2024-10-17 | latest filing |
| 2024 | GILLIBRAND, KIRSTEN | Democratic | Contribution | For | $972 | 26 | 2024-03-27 | latest filing |
| 2024 | SCHUMER, CHARLES E. | Democratic | Contribution | For | $593 | 16 | 2024-04-09 | latest filing |
| 2024 | BLUNT ROCHESTER, LISA | Democratic | Contribution | For | $575 | 7 | 2024-11-01 | latest filing |
| 2024 | FETTERMAN, JOHN KARL | Democratic | Contribution | For | $538 | 12 | 2024-10-23 | latest filing |
| 2024 | KAINE, TIMOTHY MICHAEL | Democratic | Contribution | For | $516 | 19 | 2024-04-12 | latest filing |
| 2024 | KRISHNAMOORTHI, S. RAJA | Democratic | Contribution | For | $500 | 10 | 2024-10-06 | latest filing |
| 2024 | BALDWIN, TAMMY | Democratic | Contribution | For | $490 | 19 | 2024-10-06 | latest filing |
| 2024 | TESTER, R. JON | Democratic | Contribution | For | $472 | 29 | 2024-10-07 | latest filing |
| 2024 | PORTER, KATHERINE | Democratic | Contribution | For | $459 | 21 | 2024-03-02 | latest filing |
| 2024 | ROSEN, JACKY | Democratic | Contribution | For | $441 | 15 | 2024-10-14 | latest filing |
| 2024 | SCHIFF, ADAM | Democratic | Contribution | For | $417 | 30 | 2024-03-29 | latest filing |
| 2024 | SLOTKIN, ELISSA | Democratic | Contribution | For | $325 | 6 | 2024-11-05 | latest filing |
| 2024 | JEFFRIES, HAKEEM | Democratic | Contribution | For | $313 | 17 | 2024-03-25 | latest filing |
| 2024 | OSSOFF, T. JONATHAN | Democratic | Contribution | For | $300 | 3 | 2024-06-26 | latest filing |
| 2024 | ALSOBROOKS, ANGELA | Democratic | Contribution | For | $275 | 3 | 2024-10-15 | latest filing |
| 2024 | BROWN, SHERROD | Democratic | Contribution | For | $223 | 7 | 2024-04-08 | latest filing |
| 2024 | KAPLAN, ANNA | Democratic | Contribution | For | $160 | 5 | 2023-11-02 | latest filing |
| 2024 | MCCORKLE, ISAAC IAN | Democratic | Contribution | For | $160 | 9 | 2024-03-28 | latest filing |
| 2024 | PETERS, GARY | Democratic | Contribution | For | $100 | 1 | 2023-11-08 | filing |
| 2024 | CORTEZ MASTO, CATHERINE | Democratic | Contribution | For | $100 | 1 | 2024-10-29 | filing |
| 2024 | OCASIO-CORTEZ, ALEXANDRIA | Democratic | Contribution | For | $90 | 5 | 2024-05-03 | latest filing |
| 2024 | RILEY, JOSH | Democratic | Contribution | For | $50 | 2 | 2024-01-13 | latest filing |
| 2024 | ROLLINS, WILL | Democratic | Contribution | For | $25 | 1 | 2024-04-14 | filing |
| 2022 | KELLY, MARK | Democratic | Contribution | For | $1,250 | 7 | 2022-10-31 | latest filing |
| 2022 | FLOWERS, MARCUS | Democratic | Contribution | For | $1,075 | 12 | 2022-10-16 | latest filing |
| 2022 | FETTERMAN, JOHN KARL | Democratic | Contribution | For | $984 | 13 | 2022-11-02 | latest filing |
| 2022 | BEASLEY, CHERI | Democratic | Contribution | For | $959 | 12 | 2022-10-17 | latest filing |
| 2022 | DEMINGS, VAL | Democratic | Contribution | For | $829 | 9 | 2022-10-21 | latest filing |
| 2022 | BARNES, MANDELA | Democratic | Contribution | For | $829 | 11 | 2022-11-01 | latest filing |
| 2022 | SCHUMER, CHARLES E. | Democratic | Contribution | For | $620 | 7 | 2022-08-27 | latest filing |
| 2022 | OSSOFF, T. JONATHAN | Democratic | Contribution | For | $500 | 1 | 2020-12-31 | filing |
| 2022 | SCHIFF, ADAM | Democratic | Contribution | For | $460 | 7 | 2022-08-20 | latest filing |
| 2022 | PELOSI, NANCY | Democratic | Contribution | For | $400 | 4 | 2022-08-08 | latest filing |
| 2022 | PETERS, GARY | Democratic | Contribution | For | $400 | 3 | 2022-10-04 | latest filing |
| 2022 | DUCKWORTH, L. TAMMY | Democratic | Contribution | For | $400 | 3 | 2022-10-21 | latest filing |
| 2022 | WARNOCK, RAPHAEL | Democratic | Contribution | For | $350 | 2 | 2021-01-04 | latest filing |
| 2022 | RYAN, TIMOTHY | Democratic | Contribution | For | $300 | 2 | 2022-10-24 | latest filing |
| 2022 | CORTEZ MASTO, CATHERINE | Democratic | Contribution | For | $225 | 4 | 2022-10-18 | latest filing |
| 2022 | SUOZZI, THOMAS | Democratic | Contribution | For | $100 | 1 | 2021-05-27 | filing |
| 2022 | FRANKEN, MICHAEL T | Democratic | Contribution | For | $100 | 1 | 2022-10-23 | filing |
| 2020 | OSSOFF, T. JONATHAN | Democratic | Contribution | For | $1,400 | 9 | 2020-12-11 | latest filing |
| 2020 | WARNOCK, RAPHAEL | Democratic | Contribution | For | $750 | 3 | 2020-12-16 | latest filing |
| 2020 | KELLY, MARK | Democratic | Contribution | For | $500 | 4 | 2020-10-29 | latest filing |
| 2020 | PETERS, GARY | Democratic | Contribution | For | $460 | 5 | 2020-10-25 | latest filing |
| 2020 | CORTEZ MASTO, CATHERINE | Democratic | Contribution | For | $300 | 3 | 2020-05-18 | latest filing |
| 2020 | BOLLIER, BARBARA | Democratic | Contribution | For | $100 | 1 | 2020-10-19 | filing |
| 2018 | BRYCE, RANDY | Democratic | Contribution | For | $325 | 4 | 2018-10-22 | latest filing |
| 2018 | SANDERS, BERNARD | Independent | Contribution | For | $200 | 1 | 2018-04-24 | filing |