Representative · California's 4th district

Mike Thompson

Mike Thompson is a Democratic representative for California's 4th district, in Congress since 1999. In the 119th Congress, 675 roll calls were held while they served; they missed 2, and cast 455 of 468 party-unity votes with the majority of their caucus.

Party
Democrat
Chamber
House
Current
In Congress since
Jan 6, 1999
Term ends
Jan 3, 2027
Open in the Congress explorerOfficial recordAlert me
Photo: Government Publishing Office (public domain)

Record by Congress

Counts with their denominators for each Congress and chamber served. Ranks are among members who served most of that Congress (100 or more roll calls): rank 1 did it most often. A description, not a grade.

CongressRoll callsMissedVotes with partySponsoredCosponsored across the aisle
119th CongressHouse of Representatives6750.3%2 of 675 · rank 381 of 43997%455 of 468 · rank 289 of 439270 became law28%111 of 400
118th CongressHouse of Representatives1,2220.6%7 of 1,222 · rank 384 of 44298%831 of 851 · rank 209 of 442220 became law31%104 of 331
117th CongressHouse of Representatives9970.2%2 of 997 · rank 389 of 44399%565 of 571 · rank 133 of 443481 became law10%44 of 437

Ideology (DW-NOMINATE)

Voteview's DW-NOMINATE first dimension estimates where members sit from all their roll calls: liberal (−1) to conservative (+1). It describes voting patterns, not views. Shown for the 119th Congress (House), with each party's median and the chamber's range.

Liberal −1−0.39+1 Conservative

Source: Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/

Votes against their party

The latest party-unity votes on bills and amendments where the member voted yea or nay against most of their caucus.

  1. H.R. 6955: Main Street Capital Access ActYea
    Jul 21, 2026· House· Passage· On Passage· Passed 270–155· Against party
  2. H.R. 1346: To amend the Clean Air Act with respect to the ethanol waiver for Reid Vapor Pressure under that Act, and for other purposes.Yea
    May 13, 2026· House· Passage· On Passage· Passed 218–203· Against party
  3. H.R. 7567: Farm, Food, and National Security Act of 2026Yea
    Apr 30, 2026· House· Amendments· On Agreeing to the Amendment· Failed 186–238· Against party
  4. H.R. 7567: Farm, Food, and National Security Act of 2026Yea
    Apr 30, 2026· House· Amendments· On Agreeing to the Amendment· Failed 210–216· Against party
  5. H.R. 7084: Defending American Property Abroad Act of 2026Yea
    Mar 27, 2026· House· Passage· On Passage· Passed 247–164· Against party
  6. H.R. 3638: Electric Supply Chain ActYea
    Dec 11, 2025· House· Passage· On Passage· Passed 267–159· Against party
  7. S. 1582: GENIUS ActYea
    Jul 17, 2025· House· Passage· On Passage· Passed 308–122· Against party
  8. H.R. 3633: Digital Asset Market Clarity ActYea
    Jul 17, 2025· House· Passage· On Passage· Passed 294–134· Against party

Recent votes

The latest roll calls on bills and amendments, with the member's recorded position.

  1. S. 2403: Retire through Ownership ActYea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass· Passed 401–14
  2. H.R. 9497: Water Resources Development Act of 2026Yea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 415–9
  3. H.R. 9340: Ratepayer Protection ActYea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 417–3
  4. H.J.Res. 213: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the "California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision".Nay
    Sep 16, 2026· House· Passage· On Passage· Passed 214–208
  5. H.R. 10326: PROOF ActNay
    Sep 16, 2026· House· Passage· On Passage· Passed 217–207
  6. H.R. 9576: National Fraud Enforcement Division Act of 2026Yea
    Sep 16, 2026· House· Passage· On Passage· Passed 352–72
  7. H.R. 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026Nay
    Sep 16, 2026· House· Passage· On Motion to Concur in the Senate Amendments· Passed 262–159
  8. H.Con.Res. 93: Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran.Yea
    Sep 15, 2026· House· Passage· On Agreeing to the Resolution· Passed 220–204
  9. H.J.Res. 210: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Nonroad Engine Pollution Control Standards; Ocean-Going Vessels At-Berth; Notice of Decision".Nay
    Sep 15, 2026· House· Passage· On Passage· Passed 216–211
  10. H.R. 9500: Tax Relief for Fraud Victims ActYea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 408–17
  11. H.R. 2140: Diesel Emissions Reduction Act of 2025Yea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass· Passed 343–79
  12. H.R. 4646: Whistleblower Protection Act of 2025Yea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 424–0

Sponsored bills

Bills and resolutions the member introduced as sponsor in the loaded Congresses. Volume is not quality: most measures never leave committee.

97 sponsored · 1 became law

How far they got

  1. Introduced9194%
  2. Reported by committee22.1%
  3. Passed one chamber33.1%
  4. Became law11.0%

Policy areas

  1. Taxation29
  2. Health17
  3. Agriculture and Food9
  4. Public Lands and Natural Resources9
  5. Environmental Protection7
  6. Civil Rights and Liberties, Minority Issues6
  7. Emergency Management4
  8. Crime and Law Enforcement2

Latest activity

  1. H.R. 10508 To strengthen services provided in rural areas, and for other purposes.
    Introduced· Sep 17, 2026
  2. H.R. 9489 GRACE for Military Survivors Act
    Introduced· Taxation· Jun 25, 2026
  3. H.Res. 1376 Supporting the contributions and goals of Lavender Growers Month.
    Introduced· Agriculture and Food· Jun 18, 2026
  4. H.R. 9041 America Bikes Act
    Introduced· Transportation and Public Works· May 26, 2026
  5. H.R. 8910 SLUSH FUND Act of 2026
    Introduced· Taxation· May 19, 2026
  6. H.Res. 1297 Expressing support for the designation of May 17, 2026, as "Necrotizing Enterocolitis Awareness Day".
    Introduced· Health· May 15, 2026
  7. H.Res. 1145 Supporting the goals and ideals of National Women's History Month.
    Introduced· Civil Rights and Liberties, Minority Issues· Mar 27, 2026
  8. H.R. 7810 Lowering Student Loans Act
    Introduced· Education· Mar 4, 2026

Committees

Seats as published by the congress-legislators project. Past seats are those no longer listed since Analisa began recording them.

Current seats

Federal contracts in the district

Contract obligations attributed to California's 4th district by each action's county and its award's ZIP code (land shares through census tracts); an estimate where ZIP codes cross district lines. Shown next to the member's record: neither explains the other.

Obligations · FY2026
$61.5M
Per resident
$82.49
Rank in California
52 of 52
Contract actions
1,652
New awards: 1,078

By fiscal year

  1. 1.5BFY2017
  2. 1.5BFY2018
  3. 1.5BFY2019
  4. 242.5MFY2020
  5. 136.3MFY2021
  6. 160.1MFY2022
  7. 210.2MFY2023
  8. 114.7MFY2024
  9. 76.7MFY2025
  10. 61.5MFY2026

Top buyers

  1. Department of the Navy$10.8M17%
    Department of Defense
  2. Department of the Army$9.8M16%
    Department of Defense
  3. Environmental Protection Agency$9M15%
  4. Department of Veterans Affairs$7.2M12%
  5. U.S. Coast Guard$7M11%
    Department of Homeland Security
  6. National Park Service$2.2M3.6%
    Department of the Interior
  7. Agricultural Marketing Service$1.8M2.9%
    Department of Agriculture
  8. Departmental Offices$1.7M2.8%
    Department of the Interior

Top recipients

  1. HGL-PORTAGE JV LLC$8.5M14%
    1 award
  2. GRANITE CONSTRUCTION COMPANY$7.1M11%
    1 award
  3. UNIVERSITY OF CALIFORNIA, DAVIS$6.1M9.9%
    31 awards
  4. MICROWAVE POWER PRODUCTS, INC.$4.2M6.8%
    4 awards
  5. DIAL GENERAL ENGINEERING$3.1M5.1%
    6 awards
  6. NORTH BAY REHABILITATION SERVICES, INC.$2.3M3.8%
    11 awards
  7. MELLINGER ENGINEERING, INCORPORATED$2.3M3.7%
    8 awards
  8. TRINITY NORTH STAR JV$2.1M3.4%
    2 awards
  9. ELVE INC$1.7M2.7%
    2 awards
  10. MARIANI PACKING CO., INC.$1.6M2.6%
    3 awards
Open the district page

Campaign money

What the member's campaigns reported receiving, per FEC two-year cycle, and the federal contracts of the organizations that sponsor the giving PACs (each sponsor matched to a contract recipient by AI, with its probability). Comparisons of public records: neither explains the other.

2026 cycle

Raised
$4.2M
through Jun 30, 2026
Cash on hand
$1.1M
From committees
$2M
508 committees
From contractor PACs
$288K
73 PACs · 15% of committee money
IndividualsPACsPartySelf

Largest gifts from PACs of federal contractors, 2026

PAC sponsorGivenMatched contract recipientIts contracts, FY2026
american bankers association (aba)american bankers association pac (bankpac)$10KAMERICAN BANKERS ASSOCIATIONAI match · 100% · the same organization—
american institute of certified public accountantsamerican institute of certified public accountants political action committee$10KAMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTSAI match · 100% · the same organization—
pricewaterhousecooperspricewaterhousecoopers political action committee i$10KPRICEWATERHOUSECOOPERS LLPAI match · 98% · the same organization$4.8M
burns & mcdonnell, inc.burns and mcdonnell inc. pac$10KBURNS & MCDONNELL, INC.AI match · 100% · the same organization$6M
honeywell internationalhoneywell international inc. technologies public affairs council (honpac)$9,500HONEYWELL INTERNATIONAL INC.AI match · 100% · the same organization$260.5M
american hospital associationamerican hospital association pac$8,000AMERICAN HOSPITAL ASSOCIATIONAI match · 99% · the same organization$1.2M
liberty mutual insurance companyliberty mutual insurance company - pac$7,500LIBERTY MUTUAL INSURANCE COMPANYAI match · 100% · the same organization—
humana inc.humana inc. political action committee$7,500HUMANA GOVERNMENT BUSINESS INCAI match · 100% · of one corporate family$5.6B
laboratory corporation of america holdings political participation committeelaboratory corporation of america holdings political participation committee$7,500LABORATORY CORPORATION OF AMERICA HOLDINGSAI match · 99% · of one corporate family$23.4K
quest diagnostics incorporatedquest diagnostics incorporated political action committee$7,500QUEST DIAGNOSTICS INCORPORATEDAI match · 100% · the same organization$67.1M

By cycle

CycleRaised (FEC summary)From committeesFrom contractor PACs
2026$4.2M$2M$288K73 PACs · 15% of committee money
2024$2.4M$1.5M$268K66 PACs · 18% of committee money
2022$2.3M$1.3M$279.8K63 PACs · 22% of committee money

Raised is the FEC's cumulative summary of the candidacy; committee money counts each contribution reported, so the two cover slightly different dates.

Terms

Every term in the House or Senate, as published by the congress-legislators project.

  1. House · California's 4th districtJan 3, 2025 – Jan 3, 2027
  2. House · California's 4th districtJan 3, 2023 – Jan 3, 2025
  3. House · California's 5th districtJan 3, 2021 – Jan 3, 2023
  4. House · California's 5th districtJan 3, 2019 – Jan 3, 2021
  5. House · California's 5th districtJan 3, 2017 – Jan 3, 2019
  6. House · California's 5th districtJan 6, 2015 – Jan 3, 2017
  7. House · California's 5th districtJan 3, 2013 – Jan 3, 2015
  8. House · California's 1st districtJan 5, 2011 – Jan 3, 2013
  9. House · California's 1st districtJan 6, 2009 – Jan 3, 2011
  10. House · California's 1st districtJan 4, 2007 – Jan 3, 2009
  11. House · California's 1st districtJan 4, 2005 – Jan 3, 2007
  12. House · California's 1st districtJan 7, 2003 – Jan 3, 2005
  13. House · California's 1st districtJan 3, 2001 – Jan 3, 2003
  14. House · California's 1st districtJan 6, 1999 – Jan 3, 2001

Contact

Official channels, as published.

Website
mikethompson.house.gov
Phone
202-225-3311
Office
268 Cannon House Office Building

Identifiers

The same member in other public records.

Sources and method

Every figure on this page traces to these records.

  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
  • Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • ZIP code (ZCTA) to congressional district crosswalk (U.S. Census Bureau)U.S. Census Bureau, 2020 relationship files (ZCTAs, tracts and congressional districts); shares computed by Analisa · release 2020 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Committees, candidates and committee contributions to candidates (Federal Election Commission)FEC bulk data: committee master, candidate master (candidates' names, no addresses), linkages, PAC summaries, all-candidates summaries and contributions from committees (no individual contributors) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.
  • Activity counts describe volume and attendance; they are not a measure of quality.
  • Money and votes are shown side by side; neither explains the other.