2026 midterms · California · November 3
California’s 4th District race 2026
Who’s running for U.S. House in California’s 4th District on November 3, 2026: Mike Thompson (D, incumbent) and Eric Jones (D). Now held by Mike Thompson (D). Forecasters: Solid D (average of 5). Mike Thompson has been backed with $1,000 by the pro-Israel PACs we track (2016–2026).
How to vote in California: check your registration on California’s election website · deadlines on Vote.gov for California
Next to a Democrat in Congress, $ backing is their backing from the pro-Israel PACs we track, 2016–2026; $0 backing means none. Tap a name for each PAC by year, with FEC links.
| Race | Rating | Democrats | Republicans | Others on the ballot | Notes |
|---|---|---|---|---|---|
| California 4 | Solid D Average of 5; all agree Each forecaster for California 4
| Eric Jones | No Republican on the ballot | No one else listed | Democrat vs. Democrat (top-two) |
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Questions and answers
Who is running for U.S. House in California’s 4th District in 2026?
On the November 3, 2026 ballot: Mike Thompson (D, incumbent) and Eric Jones (D).
When is the 2026 election for U.S. House in California’s 4th District?
Election Day is Tuesday, November 3, 2026. The two leaders of the primary advanced, whatever their party.
Who is favored in the 2026 race for U.S. House in California’s 4th District?
The nonpartisan forecasters we track rate it Solid D on average (5 forecasters; they all agree). These are their ratings, not our prediction.
Has AIPAC or an allied PAC backed the Democrat in this race?
Mike Thompson has been backed with $1,000 by the pro-Israel PACs we track (2016–2026).
How do I vote in California?
Check your registration on California’s election website and the registration deadlines on Vote.gov; both are linked on this page.
Where this comes from
Candidates as of October 9, 2026, from state election offices, news reports and Ballotpedia’s candidate lists; independent and minor-party candidates may not be complete. Ratings are the average of up to seven nonpartisan forecasters, read from the tables Wikipedia editors keep of them: how we average them and each forecaster’s own pages. Backing is contributions plus outside spending for a candidate by the pro-Israel PACs we track, from FEC filings (method). Results, on election night, only from AP or official sources. Found an error? Tell us.