Mike Thompson*
DEMOCRATIC
US House of Representatives (D-CA)
1999 – Present
California4th District2026 HOUSE FORECAST
Eric Jones
DEMOCRATIC
Venture Capitalist
2026 California 4th District House Forecast:
Proprietary forecast for California's 4th congressional district House election between Democrats Mike Thompson and Eric Jones. This page will update daily to produce race odds, projected margin, and forecasted vote share for this all-Democratic contest.
The 2026 California 4th District House election features Democrats Mike Thompson and Eric Jones. Incumbent Representative Mike Thompson is seeking reelection to a fifteenth term. In 2024, Donald Trump won California's 4th congressional district by 11.5%, and the election for the district's House seat is rated as solid Democratic in 2026. California conducted mid-decade redistricting prior to the midterms, and the state's new district map benefits Democrats overall.
- Year
- 2026
- Race
- House
- District
- CA-4
- Democratic candidate
- Mike Thompson
- Democratic candidate
- Eric Jones
- Incumbent / open seat
- Mike Thompson
- Forecast rating
- Solid D
- Projected vote
- 100.0% D / 0.0% R
- Projected margin
- D +100.0
- Forecast odds
- 100.0% D / 0.0% R
- Forecast last updated
- 12:00 AM on July 2, 2026
- Polling average
- —
- Polling average margin
- —
- Polling last updated
- —
- Polls included
- 0
- Latest poll
- —