Mike Thompson
U.S. House · CA-4 · Democrats · since 2025
alsoCandidate for U.S. House · CA-4
Biography
Overview
Mike Thompson is a Democratic U.S. Representative from California's 4th congressional district, serving since 1999. Before entering Congress, he was a California State Senator, Vietnam Army veteran, vineyard owner, and university instructor. He represents a district in the outer northern San Francisco Bay Area covering Lake, Napa, and parts of Contra Costa, Solano, Yolo, and Sonoma counties.
Career
Thompson has been reelected consistently since 1998, turning his district into a safe Democratic seat. He has championed health care reform, supporting the Affordable Care Act and a public option. He chairs the House Gun Violence Prevention Task Force. His district includes major wine-producing regions, and he co-chairs the Congressional Wine Caucus. He opposes abortion restrictions and voted against overturning Roe v. Wade. On environmental issues, his record is mixed—he has voted for some timber industry-friendly measures while earning environmental group endorsements.
Prior political experience
Thompson was first elected to Congress in 1998, defeating Republican Frank Riggs by almost a 30% margin. He has been reelected consistently since then without facing substantive opposition, solidifying his seat in what was previously a swing district.
Biographical material adapted from the Wikipedia article (retrieved April 29, 2026), available under CC BY-SA 4.0.
Ideology
Liberal–Conservative (DW-NOMINATE dim 1)
Secondary axis (DW-NOMINATE dim 2)(?)
Campaigns targeting Mike Thompson
No active campaigns target Mike Thompson right now.
Start a campaign targeting Mike ThompsonOfficeholding history
| Term | Seat | Term dates | Termination | Predecessor | Successor |
|---|---|---|---|---|---|
| 2nd | U.S. House CA-4 | 2025–present | In progress | Mike Thompson | — |
| 1st | U.S. House CA-4 | 2023–2025 | Term ended | Tom McClintock | Mike Thompson |
| 5th | U.S. House CA-5 | 2021–2023 | Term ended | Mike Thompson | Tom McClintock |
| 4th | U.S. House CA-5 | 2019–2021 | Term ended | Mike Thompson | Mike Thompson |
| 3rd | U.S. House CA-5 | 2017–2019 | Term ended | Mike Thompson | Mike Thompson |
| 2nd | U.S. House CA-5 | 2015–2017 | Term ended | Mike Thompson | Mike Thompson |
| 1st | U.S. House CA-5 | 2013–2015 | Term ended | Doris O. Matsui | Mike Thompson |
| 7th | U.S. House CA-1 | 2011–2013 | Term ended | Mike Thompson | — |
| 6th | U.S. House CA-1 | 2009–2011 | Term ended | Mike Thompson | Mike Thompson |
| 5th | U.S. House CA-1 | 2007–2009 | Term ended | Mike Thompson | Mike Thompson |
| 4th | U.S. House CA-1 | 2005–2007 | Term ended | Mike Thompson | Mike Thompson |
| 3rd | U.S. House CA-1 | 2003–2005 | Term ended | Mike Thompson | Mike Thompson |
| 2nd | U.S. House CA-1 | 2001–2003 | Term ended | Mike Thompson | Mike Thompson |
| 1st | U.S. House CA-1 | 1999–2001 | Term ended | — | Mike Thompson |
Committee assignments
- TaxHouseRanking Member· 2025–present
- HealthHouse· 2025–present
- House· 2025–present
Current term legislation
Bills sponsored this term10
- H.R. 7810
Lowering Student Loans Act
Mar 4, 2026IN_COMMITTEE - H.R. 7636
To amend the Internal Revenue Code of 1986 to establish the individual tariff refund credit.
Feb 20, 2026IN_COMMITTEE - H.R. 7381
Prevent Presidential Profiteering Act
Feb 4, 2026IN_COMMITTEE - H.R. 6900
American Affordability Act of 2025
Dec 18, 2025IN_COMMITTEE - H.R. 6496
Specialty Crop & Wine Producer Tariff Relief Act
Dec 5, 2025IN_COMMITTEE - H.R. 6118
Support and Defend Our Military Personnel and Their Families Act
Nov 18, 2025IN_COMMITTEE - H.R. 5862
American Energy Independence and Affordability Act
Oct 28, 2025IN_COMMITTEE - H.R. 4354
Agricultural Emergency Relief Act of 2025
Jul 10, 2025IN_COMMITTEE - H.R. 4206
CONNECT for Health Act of 2025
Jun 26, 2025IN_COMMITTEE - H.R. 3936
Bicycle Commuter Act of 2025
Jun 11, 2025IN_COMMITTEE
Bills cosponsored this term10
- H.R. 8474
Neighborhood Tree Act of 2026
Apr 23, 2026IN_COMMITTEE - H.R. 8397
To protect Moms and babies against climate change, and for other purposes.
Apr 21, 2026IN_COMMITTEE - H.R. 8175
To amend title 10, United States Code, and the National Defense Authorization Act for Fiscal Year 1994, to codify and clarify gender neutral standards for members of certain Armed Forces, and for other purposes.
Apr 2, 2026IN_COMMITTEE - H.R. 7973
Momnibus Act
Mar 18, 2026IN_COMMITTEE - H.R. 7959
IRS Whistleblower Program Improvement Act
Mar 17, 2026IN_COMMITTEE - H.R. 7825
Doug LaMalfa Protect Innocent Victims of Taxation After Fire Extension Act
Mar 5, 2026IN_COMMITTEE - H.R. 7805
Trade Adjustment Assistance Modernization Act
Mar 4, 2026IN_COMMITTEE - H.R. 7736
RELIEF Act
Feb 26, 2026IN_COMMITTEE - H.R. 7705
Tribal Tax and Investment Reform Act of 2026
Feb 25, 2026IN_COMMITTEE - H.R. 7645
Ceasefire Compliance Act of 2026
Feb 23, 2026IN_COMMITTEE
Elections
| Year | Seat | Result | Vote share | Field |
|---|---|---|---|---|
| — | — | Pending | — | — |