Thompson has spent years focused on a few core fights. Each is tied to bills actually introduced or votes actually cast.
01
Supports expanded federal background checks for firearmsThompson sponsored HR.18, the Bipartisan Background Checks Act of 2025, which would extend federal background check requirements to a broader set of firearm transfers. The bill has drawn more than 200 cosponsors. Thompson chairs the House Gun Violence Prevention Task Force and also sponsored HCONRES.46, a concurrent resolution expressing congressional commitment to federal responsibilities in this area.
02
Supports expanded telehealth coverage accessThompson sponsored the CONNECT for Health Act of 2025 (HR.4206), a bill that would expand Medicare coverage of telehealth services. The legislation has attracted more than 200 cosponsors and is a reintroduction of a prior-Congress version (HR.4189), which Thompson also sponsored. The recurring sponsorship reflects a sustained focus on telehealth as a component of health care delivery.
03
Supports energy independence and affordability measuresThompson sponsored the American Energy Independence and Affordability Act (HR.5862), a bill addressing domestic energy policy. The legislation attracted between 100 and 199 cosponsors. The bill's title and cosponsorship breadth indicate focus on both energy supply and consumer cost considerations within the energy sector.
04
Supports disaster insurance coverage and agricultural reliefThompson sponsored the Disaster Resiliency and Coverage Act of 2025 (HR.1105), addressing insurance coverage in areas affected by disasters, and the Agricultural Emergency Relief Act of 2025 (HR.4354), providing relief mechanisms for agricultural emergencies. Both bills are reintroductions, and HR.1105 attracted 50 to 99 cosponsors. Thompson's district includes agricultural regions in Napa, Lake, and Sonoma counties.
05
Supports federal funding for mental health and smoke researchThompson sponsored the Mental Health Research Accelerator Act of 2025 (HR.2085) and the Smoke Exposure Research Act of 2025 (HR.2084), both reintroduced measures directing federal resources toward medical research. The Smoke Exposure Research Act is relevant to constituencies in California's wildfire-affected northern regions, and both bills reflect an orientation toward federally funded health research programs.
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01 · Background
Who they are, where they came from
Mike Thompson represents California's 4th congressional district, a seat he has held since January 1999. The district encompasses all of Lake and Napa counties and portions of Contra Costa, Solano, Yolo, and Sonoma counties in the outer northern San Francisco Bay Area. Thompson chairs the House Gun Violence Prevention Task Force. In that role, he has sponsored the Bipartisan Background Checks Act of 2025 (HR.18), which would expand federal background check requirements for firearm transfers, and the concurrent resolution HCONRES.46 expressing Congress's commitment to related federal responsibilities. On health care access, Thompson has sponsored the CONNECT for Health Act of 2025 (HR.4206), legislation addressing telehealth coverage, which he also introduced in a prior Congress as HR.4189. He has additionally sponsored the Mental Health Research Accelerator Act of 2025 (HR.2084) and the Smoke Exposure Research Act of 2025 (HR.2085). On energy and disaster policy, Thompson sponsored the American Energy Independence and Affordability Act (HR.5862) and the Disaster Resiliency and Coverage Act of 2025 (HR.1105), the latter addressing insurance coverage in disaster-affected areas. He has also sponsored the Agricultural Emergency Relief Act of 2025 (HR.4354) and multiple resolutions supporting National Women's History Month (HRES.280, HRES.1145, HRES.1110).
02 · Recent significant work
What they’ve done lately
Jun 26, 2025Sponsored
CONNECT for Health Act of 2025
Summary not yet generated.
Jun 10, 2025Sponsored
Bipartisan Background Checks Act of 2025
Summary not yet generated.
Oct 28, 2025Sponsored
American Energy Independence and Affordability Act
Summary not yet generated.
Feb 6, 2025Sponsored
Disaster Resiliency and Coverage Act of 2025
Summary not yet generated.
Mar 29, 2024Sponsored
Supporting the goals and ideals of National Women's History Month.
Thompson raised $3.0M this cycle, with 44.4% from PAC contributions and 53.3% from individuals — of which 90.0% came from itemized contributions. Top PAC contributors include Blue Dog Victory Fund, Wine Institute PAC, Constellation Brands, Inc. PAC, and American Crystal Sugar Company PAC. Top employer concentrations include Sierra Pacific Industries, Jackson Family Wines, Trinchero Family Estates, Caymus Vineyards, Araujo Estate Wines, and E & J Gallo Winery — primarily wine-industry employers. Unitemized contributions accounted for 10.0% of individual receipts.
Self-reported employer data. Categories like “Retired” and “Not Employed” are excluded — these reflect demographic patterns rather than industry concentrations.
Every claim on this page links to a public source. We don’t tell you whether Mike Thompson is a good or bad official— that’s your call. We just make the facts easy to find.