Representative · California · District 4
Mike Thompson
D
ChamberHouse
PartyDemocrat
StateCalifornia
District4th
Mike Thompson is the U.S. Representative for California's 4th District (CA-4).
District Geography
District covers all of Lake County and Napa County and part of Solano County, Sonoma County, and Yolo County, including Napa, Davis, and Woodland and part of Santa Rosa and Vacaville.
District boundaries: 119th Congress · U.S. Census Bureau relationship files.
On the Record 99 tracked votes
Biography
Charles Michael Thompson is an American politician serving as the U.S. representative for California's 4th congressional district since 1999. The district, in the outer northern portion of the San Francisco Bay Area, includes all of Lake and Napa counties and parts of Contra Costa, Solano, Yolo and Sonoma counties. Thompson chairs the House Gun Violence Prevention Task Force. He is a member of the Democratic Party.
WikipediaFloor Statements
Commerce, Justice, Science; Energy and Water Development; and Interior and Environment Appropriations Act, 2026SUPPORT
“Speaker, I rise today to highlight National Forest Week celebrated earlier this month. This week is an opportunity for us to celebrate the beauty of our national forests. I am proud to represent the Allegheny National Forest, the only national forest in Pennsylvania. Whether it is forestry, energy production, timber harvesting, or an abundance of outdoor activities, the Allegheny National Forest has it all. For generations, the Allegheny National Forest has brought economic prosperity to the region.”
Jun 11, 2026
Clergy ActOPPOSE
“Mr. Speaker, if we are serious about strengthening Social Security, we can't stop at incremental fixes. We must also protect the program from efforts that would weaken this great program. We have heard calls for so-called reforms or tough choices. Let's be clear about what that means: cutting benefits, raising retirement age, or moving toward privatization--steps that undermine the guaranteed security Americans rely on. Democrats reject that approach. We believe Social Security is a promise, not a bargaining chip.”
January 6, 2025
Voting Record
NayJuly 15, 2026
YeaJuly 13, 2026
YeaJune 3, 2026
NayApril 30, 2026
To direct the removal of United States Armed Forces from Venezuela that have not been authorized by Congress.H.Con.Res. 68
YeaJanuary 22, 2026NayJanuary 22, 2026
NayNovember 18, 2025