Skip to content
Elections in USAall U.S. elections
Democratic · CA-04

Mike Thompson

Mike Thompson is a Democratic incumbent in California's 4th district. $4.2M raised, $4.3M spent, $1.1M cash through Jun 30, 2026. On the November ballot

$4.2Mraised
$4.3Mspent
$1.1Mcash on hand
Campaign finance$4.2M raised

Flags are rules applied to FEC totals, not judgements. Reported

Raised$4.2M
Spent$4.3M
Cash on hand$1.1M
Campaign finance
MeasureAmount
Raised (total receipts)$4,204,013
Spent (disbursements)$4,337,765
Cash on hand$1,075,737
Debts owed by campaign$37,712
Filing covers throughJun 30, 2026

Reported Self-reported to the FEC.

Record in Congressage 75 · 14 terms · votes right of 25% of the House
75age on Election Day
14House terms (since 1999)
Democratparty in Congress

Voting record

-10+1more liberalmore conservativeThompson
Voting record
MeasureValue
DW-NOMINATE score (first dimension)-0.39
Votes more conservative than25% of House members
Democratic median / Republican median-0.40 / +0.53
Roll-call votes counted569

Estimate DW-NOMINATE (Voteview, UCLA) scales members from their roll-call votes in the 119th Congress: negative is more liberal, positive more conservative. It describes voting patterns, not views on any one issue. See the member on Voteview.

Official House website · Official biography (Congress)

Reported Facts from the public congress-legislators dataset, current to 2026-10-15.

Financial disclosurefiled 2026-05-14

Annual report for 2025, filed 2026-05-14. We could not read this report automatically, so we show no figures from it. Open the official report (PDF)

Reports filed on paper or as scans have no text we can read.

Public attention8,262 views in 30 days
8,262Wikipedia views, last 30 days
#114 of 461among candidates in the race with an article

Reported Page views of Mike Thompson on English Wikipedia, 2026-09-14 to 2026-10-13 (Wikimedia). Views show curiosity, not support: long-serving incumbents have older, better-known articles, and many challengers have none.

Where the money comes fromindividuals, PACs, party, self
Individual donors 54%PACs and other committees 44%Party committees 0%Other (refunds, transfers, loans) 2%
Funding mix
Source of moneyAmountShare of receipts
Individual donors$2,282,28354.3%
PACs and other committees$1,847,81144.0%
Party committees$1,8350.0%
Other (refunds, transfers, loans)$72,0841.7%
This raceCA-04, rank #2 of 2

Mike Thompson ranks #2 of 2 in reported fundraising in this race.

CA-04 · California · Democratic candidates · House forecasts

Elsewhere: Wikipedia · Wikidata · Official website · X (Twitter) · links matched through Wikidata and checked against the member or candidate record

Sources and methodFEC

All figures come from the Federal Election Commission and cover each filing period through Jun 30, 2026. FEC ID H8CA01109, committee C00326363. View the official record.

Ballot status: listed as a nominee in Wikipedia's article for this state (CC BY-SA), matched to this FEC record by name.