
U.S. Representative
Mike Thompson
California District 4
Votes on Record
719
across 19 categories
Contact

U.S. Representative
California District 4
Votes on Record
719
across 19 categories
Contact
Voting Profile
Most Active Policy Areas
719
Votes Analyzed
Data sources: voteview, congress.gov
Political Position
Rep. Mike Thompson's NOMINATE ideology score of -0.392 places him very close to the Democratic Party average of -0.380, making him a fairly typical Democrat who leans slightly more progressive than his party's center. In practical terms, this means he generally votes in line with mainstream Democratic positions on most issues, with occasional leanings toward the more progressive wing of his party. Voters can think of him as a reliable party member whose positions closely mirror the broader Democratic caucus.
Near the average for Democrats (-0.38)
Data source: VoteView NOMINATE scores (UCLA/UC San Diego)
Policy Positions
719
total votes analyzed
Overview
Mike Thompson is a Democratic member of the U.S. House of Representatives from California with a substantial voting record of 719 votes across a wide range of policy areas. His most active areas of legislative engagement are healthcare, budget and spending matters, agriculture, defense, and environmental or energy policy. On healthcare, Thompson has voted in favor of related legislation roughly two-thirds of the time, supporting measures like the Do No Harm in Medicaid Act and efforts to lower health care premiums. On budget matters, he has opposed more proposals than he has supported — voting against the fiscal year 2027 congressional budget and continuing appropriations measures — which is consistent with a member of the minority party opposing majority-crafted spending plans. His agriculture voting reflects his representation of a California district with significant farming interests, where he has supported agriculture appropriations and animal protection legislation. Thompson has shown strong support for defense and veterans' issues, voting in favor of 74% of defense-related measures, including veterans' care legislation. He has also supported all foreign policy measures that came to a vote. On environmental and energy policy, he opposed most measures — voting against roughly 69% — which may reflect opposition to proposals he viewed as insufficient or counterproductive to environmental goals. He has voted against most immigration-related measures, opposing 7 out of 8 bills in that category. Overall, Thompson's record paints a picture of a legislator engaged across many policy domains who votes consistently with his party while maintaining particular focus on healthcare, agriculture, and veterans' affairs.
Key Positions
By Policy Area
Analysis updated: September 18, 2026
Campaign Finance
Includes all authorized campaign committees (principal committee, joint fundraising, and other authorized committees). Outside spending by Super PACs and independent groups is shown separately below.
Verify on FEC.gov →Career: $28.9M
Fundraising Over Time
Contribution Sources
55%
45%
0%
Individual Breakdown
Itemized (>$200)
$2.1M
Small Dollar (<$200)
$198K
Donation Sizes
Share of individual contribution dollars by donation size, current election cycle.
Where the Money Comes From
Itemized individual contributions only (donations over $200 report the donor's state). Small-dollar donations are not included because the FEC does not itemize them.
Top Contributors
Top Contributing Industries
Top Donor Employers
Employer as self-reported by itemized donors. “Not Employed” and “Self-Employed” typically rank highest for small-dollar campaigns and include retirees.
Where the Money Goes
Spending by Purpose
Purpose categories are self-reported on FEC filings; large “Other” totals are common.
Top Payees
BEACON MEDIA LLC
CARDMEMBER SERVICES
CLEANSWEEP CAMPAIGNS
RCBS PAYROLL
ADVANCED NETWORK STRATEGIES, LLC
DCCC
REEDY, SUSAN
RIVER CITY BUSINESS SERVICES
Detailed Breakdown
Expenditures
Operating Costs
$4.1M
Operating Offsets
$21K
Net Operating
$4.1M
Refunds
Individual Refunds
$35K
Committee Refunds
$6K
Outside Spending (Super PACs)
Supporting
$56K
Opposing
$335.86
Total Outside Spending
$56K
Top Outside Spenders
WITH HONOR FUND II, INC.
COOPERATIVE OF AMERICAN PHYSICIANS INDEPENDENT EXPENDITURE COMMITTEE
BIPAC - BUSINESS INSTITUTE FOR POLITICAL ANALYSIS
FRIENDS OF JOHN SAWYER FOR SUPERVISOR 2012
COURAGE CALIFORNIA SUPER PAC
YOLO COUNTY DEMOCRATIC CENTRAL COMMITTEE FEDERAL ACCOUNT
MENDOCINO COUNTY DEMOCRATIC CENTRAL COMMITTEE
TOGETHER WE THRIVE
Independent expenditures are made without coordination with the candidate. Source: FEC Schedule E filings.
Voting Record
719 votes across 19 categories