California's 4th district: 2026 House race
California's 4th district is held by Mike Thompson (Democratic). Eric Jones leads in reported fundraising with $8.4M. Forecasters rate it Safe D.
Candidates and money2 on file
| Candidate | Party | Status | Raised | Spent | Cash |
|---|---|---|---|---|---|
| Eric Jones | DEM | Challenger | $8.4M | $7.7M | $656K |
| Mike Thompson | DEM | Incumbent | $4.2M | $4.3M | $1.1M |
Ballot status: nominees as listed on Wikipedia (text under CC BY-SA), matched to FEC records by name.
Reported Source: FEC, through each candidate's latest filing. Open this race on FEC.gov
Other FEC filers (not matched to a November nominee)5
| Candidate | Party | Status | Raised | Spent | Cash |
|---|---|---|---|---|---|
| Raymond Riehle | REP | Challenger | $115K | $113K | $2,778 |
| Laurie John Mackenzie | REP | Challenger | $14K | $6,384 | $7,845 |
| Sharon Brown | REP | Challenger | $7,000 | $7,000 | $0 |
| Mandy Ghusar | REP | Challenger | $7,000 | $7,000 | $0 |
| Trevor Merrell | DEM | Challenger | $6,435 | $6,459 | -$24 |
They may have lost a primary or withdrawn, or our name match may have missed them. Their records are kept for reference.
Forecasts and ratingsnational odds + who rates this race
Consensus (median of 5): Safe D Estimate
| Forecaster | Rating | Date listed | Note |
|---|---|---|---|
| Cook Political Report | Safe D | 2025-11-05 | dated |
| Inside Elections | Safe D | 2025-03-07 | dated |
| Sabato's Crystal Ball | Safe D | 2025-07-15 | dated |
| Decision Desk HQ | Safe D | 2026-07-14 | dated |
| The Economist | Safe D | 2026-05-06 | dated |
Ratings are each publisher's own, compiled from Wikipedia (CC BY-SA 4.0). The date is the one listed there; a rater may have changed its call since, and “dated” means more than 45 days old. Open the forecaster for its current rating.
No Polymarket market was found for this race.
Open each forecaster for its current rating and method.
National picture: Democrats 90.5% to control the House on Polymarket Estimate. See all forecasts.
Who lives hereCensus survey data
| Measure | Value |
|---|---|
| Population | 764,257 |
| Median age | 39.3 |
| Median household income | $97,540 ±$1,488 |
| Adults 25+ with a bachelor’s degree or more | 36.2% |
| White, not Hispanic | 49.9% |
| Black, not Hispanic | 2.7% |
| Asian, not Hispanic | 8.3% |
| Hispanic or Latino (any race) | 32.7% |
| Homes lived in by their owners | 61.2% |
| People below the poverty line | 11.8% |
| Born outside the U.S. | 17.9% |
Heads up: California drew a new congressional map for 2026. These figures describe the old district lines, so they will not match the people who vote in this race.
Source: U.S. Census Bureau, American Community Survey, 2020-2024 5-year estimates, district lines of the 119th Congress, fetched 2026-10-15. These are survey estimates with margins of error; the Bureau publishes the error for each figure.
Public attention in this race1 candidate with an article
| Candidate | Party | Views, 30 days | Share |
|---|---|---|---|
| Mike Thompson | DEM | 8,262 | 100% |
Reported English Wikipedia page views, 2026-09-14 to 2026-10-13. Only candidates with an article are counted; views show curiosity, not support.
Data on this page3/6 complete
| Data | Status | Detail |
|---|---|---|
| Nominees | Have it | listed on Wikipedia, matched to FEC |
| Campaign finance | Have it | FEC filings through 06/30/2026 |
| Forecaster ratings | Have it | 5 forecasters |
| Prediction market | Missing | no market found |
| 2024 result | Missing | not available |
| Financial disclosures | Partial | 1 of 2 candidates read |
So you can see what we have and what we do not. Missing is never treated as zero.