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.
DUHAMEL, WILLIAM F.
Individual donor · SAN FRANCISCO, CA· ROUTE ONE INVESTMENT CO. LP (PORTFOLIO MANAGER)
Summary by party and cycle
| Cycle | Candidate party | For | Against |
|---|---|---|---|
| 2026 | Republican | $77,327 | $0 |
| 2024 | Republican | $115,200 | $0 |
| 2022 | Republican | $78,700 | $0 |
| 2022 | Democratic | $5,800 | $0 |
| 2020 | Republican | $38,900 | $0 |
| 2020 | Democratic | $2,800 | $0 |
| 2018 | Republican | $48,600 | $0 |
| 2018 | Democratic | $2,700 | $0 |
| 2016 | Republican | $11,000 | $0 |
Details by candidate
| Cycle | Candidate | Party | How | For or against | Amount | Gifts | Latest | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | ERNST, JONI K | Republican | Contribution | For | $14,000 | 1 | 2025-03-03 | filing |
| 2026 | NUNN, ZACH | Republican | Contribution | For | $7,000 | 1 | 2025-02-21 | filing |
| 2026 | HUSTED, JON | Republican | Contribution | For | $7,000 | 1 | 2025-06-11 | filing |
| 2026 | SULLIVAN, DAN | Republican | Contribution | For | $7,000 | 2 | 2025-06-16 | latest filing |
| 2026 | RICKETTS, PETE | Republican | Contribution | For | $7,000 | 2 | 2025-06-25 | latest filing |
| 2026 | LANKFORD, JAMES PAUL | Republican | Contribution | For | $7,000 | 1 | 2025-06-30 | filing |
| 2026 | COLLINS, SUSAN M. | Republican | Contribution | For | $7,000 | 2 | 2025-06-30 | latest filing |
| 2026 | MASSIE, THOMAS H. | Republican | Contribution | For | $7,000 | 1 | 2026-05-03 | filing |
| 2026 | THUNE, JOHN R. | Republican | Contribution | For | $6,600 | 1 | 2025-05-30 | filing |
| 2026 | HYDE-SMITH, CINDY | Republican | Contribution | For | $3,500 | 1 | 2025-06-23 | filing |
| 2026 | SUNUNU, JOHN E | Republican | Contribution | For | $3,500 | 1 | 2026-03-01 | filing |
| 2026 | YOUNG, TODD CHRISTOPHER | Republican | Contribution | For | $727 | 2 | 2026-04-02 | latest filing |
| 2024 | MCCORMICK, DAVE | Republican | Contribution | For | $13,200 | 1 | 2024-04-23 | filing |
| 2024 | BLACKBURN, MARSHA | Republican | Contribution | For | $6,600 | 1 | 2023-09-27 | filing |
| 2024 | SHEEHY, TIM | Republican | Contribution | For | $6,600 | 1 | 2023-11-08 | filing |
| 2024 | BROWN, SAM | Republican | Contribution | For | $6,600 | 1 | 2023-11-17 | filing |
| 2024 | THUNE, JOHN R. | Republican | Contribution | For | $6,600 | 1 | 2024-09-30 | filing |
| 2024 | NICK, LALOTA | Republican | Contribution | For | $5,000 | 1 | 2023-12-12 | filing |
| 2024 | MOORE, BLAKE | Republican | Contribution | For | $5,000 | 2 | 2023-12-14 | latest filing |
| 2024 | MILLER-MEEKS, MARIANNETTE JANE | Republican | Contribution | For | $5,000 | 1 | 2023-12-15 | filing |
| 2024 | EDWARDS, CHUCK | Republican | Contribution | For | $5,000 | 2 | 2023-12-15 | latest filing |
| 2024 | KIGGANS, JENNIFER | Republican | Contribution | For | $5,000 | 1 | 2023-12-19 | filing |
| 2024 | STEIL, BRYAN GEORGE | Republican | Contribution | For | $5,000 | 2 | 2023-12-23 | latest filing |
| 2024 | JAMES, JOHN | Republican | Contribution | For | $5,000 | 1 | 2024-03-29 | filing |
| 2024 | AMODEI, MARK EUGENE | Republican | Contribution | For | $5,000 | 1 | 2024-03-31 | filing |
| 2024 | BENTZ, CLIFF | Republican | Contribution | For | $5,000 | 2 | 2024-04-18 | latest filing |
| 2024 | YOUNG, TODD CHRISTOPHER | Republican | Contribution | For | $3,300 | 1 | 2023-07-11 | filing |
| 2024 | ROGERS, MICHAEL J | Republican | Contribution | For | $3,300 | 1 | 2023-11-09 | filing |
| 2024 | CRENSHAW, DANIEL | Republican | Contribution | For | $3,300 | 1 | 2023-12-19 | filing |
| 2024 | MILLER, MAX | Republican | Contribution | For | $3,300 | 1 | 2023-12-21 | filing |
| 2024 | CALVERT, KEN | Republican | Contribution | For | $3,300 | 1 | 2024-03-26 | filing |
| 2024 | DUARTE, JOHN | Republican | Contribution | For | $3,300 | 1 | 2024-03-29 | filing |
| 2024 | ZINKE, RYAN K | Republican | Contribution | For | $3,300 | 1 | 2024-03-31 | filing |
| 2024 | GARCIA, MICHAEL | Republican | Contribution | For | $2,500 | 1 | 2023-12-20 | filing |
| 2024 | STEEL, MICHELLE | Republican | Contribution | For | $2,500 | 1 | 2024-03-28 | filing |
| 2024 | ELLZEY, JOHN KEVIN SR. | Republican | Contribution | For | $2,500 | 1 | 2024-03-31 | filing |
| 2022 | SADDLER, LATHAM | Republican | Contribution | For | $8,700 | 1 | 2021-09-11 | filing |
| 2022 | BRITT, KATIE BOYD | Republican | Contribution | For | $8,700 | 3 | 2022-10-31 | latest filing |
| 2022 | GONZALEZ, ANTHONY E | Republican | Contribution | For | $5,800 | 2 | 2021-02-23 | latest filing |
| 2022 | YOUNG, TODD CHRISTOPHER | Republican | Contribution | For | $5,800 | 1 | 2021-03-16 | filing |
| 2022 | GOTTHEIMER, JOSH | Democratic | Contribution | For | $5,800 | 2 | 2021-08-27 | latest filing |
| 2022 | VAN ORDEN, DERRICK F. | Republican | Contribution | For | $5,800 | 1 | 2022-02-18 | filing |
| 2022 | MEIJER, PETER | Republican | Contribution | For | $5,800 | 1 | 2022-06-14 | filing |
| 2022 | STEIL, BRYAN GEORGE | Republican | Contribution | For | $5,800 | 2 | 2022-06-23 | latest filing |
| 2022 | FINSTAD, BRAD | Republican | Contribution | For | $5,800 | 1 | 2022-07-29 | filing |
| 2022 | LEE, MIKE | Republican | Contribution | For | $5,800 | 1 | 2022-11-04 | filing |
| 2022 | BAUGH, SCOTT | Republican | Contribution | For | $2,900 | 1 | 2022-06-01 | filing |
| 2022 | STEEL, MICHELLE | Republican | Contribution | For | $2,900 | 1 | 2022-07-29 | filing |
| 2022 | GARCIA, MICHAEL | Republican | Contribution | For | $2,900 | 1 | 2022-08-01 | filing |
| 2022 | FUNG, ALLAN | Republican | Contribution | For | $2,900 | 1 | 2022-09-07 | filing |
| 2022 | JOHNSON, RON HAROLD | Republican | Contribution | For | $2,900 | 1 | 2022-10-19 | filing |
| 2022 | O'DEA, JOSEPH MATTHEW | Republican | Contribution | For | $2,900 | 1 | 2022-10-24 | filing |
| 2022 | BUDD, THEODORE P | Republican | Contribution | For | $2,900 | 1 | 2022-10-26 | filing |
| 2022 | THUNE, JOHN R. | Republican | Contribution | For | $400 | 2 | 2022-01-10 | latest filing |
| 2020 | JAMES, JOHN | Republican | Contribution | For | $5,600 | 1 | 2019-08-13 | filing |
| 2020 | GONZALEZ, ANTHONY E | Republican | Contribution | For | $5,600 | 1 | 2019-11-01 | filing |
| 2020 | LOEFFLER, KELLY | Republican | Contribution | For | $5,600 | 2 | 2020-09-30 | latest filing |
| 2020 | TUBERVILLE, THOMAS H | Republican | Contribution | For | $5,600 | 1 | 2020-10-06 | filing |
| 2020 | MARSHALL, ROGER W | Republican | Contribution | For | $5,600 | 1 | 2020-10-14 | filing |
| 2020 | COLLINS, SUSAN M. | Republican | Contribution | For | $5,400 | 2 | 2019-02-02 | latest filing |
| 2020 | CORNYN, JOHN SEN | Republican | Contribution | For | $2,800 | 1 | 2019-04-16 | filing |
| 2020 | PELOSI, NANCY | Democratic | Contribution | For | $2,800 | 1 | 2019-07-17 | filing |
| 2020 | CAPITO, SHELLEY MOORE | Republican | Contribution | For | $2,700 | 1 | 2019-01-04 | filing |
| 2018 | LEE, MIKE | Republican | Contribution | For | $8,100 | 3 | 2018-04-23 | latest filing |
| 2018 | THUNE, JOHN R. | Republican | Contribution | For | $5,400 | 2 | 2017-02-21 | latest filing |
| 2018 | GARDNER, CORY | Republican | Contribution | For | $5,400 | 2 | 2017-02-23 | latest filing |
| 2018 | ROKITA, THEODORE EDWARD | Republican | Contribution | For | $5,400 | 1 | 2017-10-02 | filing |
| 2018 | HYDE-SMITH, CINDY | Republican | Contribution | For | $5,400 | 1 | 2018-09-30 | filing |
| 2018 | HUGIN, ROBERT | Republican | Contribution | For | $5,400 | 2 | 2018-10-09 | latest filing |
| 2018 | GONZALEZ, ANTHONY E | Republican | Contribution | For | $2,700 | 1 | 2017-09-11 | filing |
| 2018 | GOTTHEIMER, JOSH | Democratic | Contribution | For | $2,700 | 1 | 2017-09-25 | filing |
| 2018 | NICHOLSON, KEVIN | Republican | Contribution | For | $2,700 | 1 | 2018-06-27 | filing |
| 2018 | FAREED, JUSTIN | Republican | Contribution | For | $2,700 | 1 | 2018-08-03 | filing |
| 2018 | BLACKBURN, MARSHA | Republican | Contribution | For | $2,700 | 1 | 2018-10-11 | filing |
| 2018 | BRAT, DAVID ALAN | Republican | Contribution | For | $2,700 | 1 | 2018-10-12 | filing |
| 2016 | YOUNG, TODD CHRISTOPHER | Republican | Contribution | For | $8,100 | 2 | 2016-01-07 | latest filing |
| 2016 | JOHNSON, RON HAROLD | Republican | Contribution | For | $2,700 | 1 | 2016-09-27 | filing |
| 2016 | THUNE, JOHN R. | Republican | Contribution | For | $200 | 2 | 2015-12-23 | latest filing |