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Mike Thompson
U.S. Representative, California
268 Cannon House Office Building
Summary
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.
Source: Wikipedia · as of Aug 21, 2026
Scorecard
The record at a glanceA quick read on how Rep. Thompson votes and legislates this Congress. Every figure links to its full record below.
Views on the Issues
See where Rep. Thompson stands — alongside Democratic and Republican positions.
Sponsored Legislation
See all 366 →HRES 1297
HRES 1297 · Introduced May 15, 2026 · Health
May 15, 2026: Referred to the House Committee on Energy and Commerce.
HCONRES 46
HCONRES 46 · Introduced Jul 23, 2025 · Environmental Protection
Jul 23, 2025: Referred to the Committee on Energy and Commerce, and in addition to the Committee on Foreign Affairs, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.
HR 8910
HR 8910 · Introduced May 19, 2026 · Taxation
May 19, 2026: Referred to the House Committee on Ways and Means.
HR 9489
HR 9489 · Introduced Jun 25, 2026 · Taxation
Jun 25, 2026: Referred to the House Committee on Ways and Means.
Voting Analytics
Full record →Computed over Rep. Thompson's 645 roll-call votes in the 119th Congress, of which 452were party-split (the two parties' majorities on opposite sides). Unanimous votes are excluded so the rates aren't inflated.
97.1%
Votes with the Democratic majority
On party-split votes
2.9%
Votes with the other party
The bipartisanship read
0.5%
Missed votes
Chamber median 2.2% · at or below median
Placement on the House's left–right spectrum
More liberalMore conservative
Based on how often Rep. Thompson sided with the Republican majority on party-split votes, ranked against all representatives. This is a vote-agreement placement, not an academic ideology score.
Source: Clerk of the U.S. House (roll-call votes) · as of Sep 9, 2025
Legislative Activity
What Rep. Thompson has put their name on in the 119th Congress, and across their career. Most bills — from every member — never become law; the enacted count is context, not a grade.
26
Sponsored this Congress
366 all-time
0
Became law this Congress
0% of those sponsored
4,419
Cosponsored, all-time
Signed on to others' bills
366
Bills sponsored, all-time
Source: Congress.gov · as of Aug 21, 2026
Landmark Legislation
Major bills from recent Congresses — outcomes and party vote breakdowns. For Rep. Thompson's individual votes, view their full record on Congress.gov.
Inflation Reduction Act
Enacted2022 · H.R. 5376Largest climate investment in U.S. history; allowed Medicare to negotiate drug prices; reduced the federal deficit.
D: 50 yeaR: 0 yeaFinal: 51–50
CHIPS Act
Enacted2022 · H.R. 4346Invested $52 billion in domestic semiconductor manufacturing to reduce dependence on foreign chip supply chains.
D: 47 yeaR: 17 yeaFinal: 64–33