CalledUnofficial results
California's 10th District
U.S. House · California
Mark DeSaulnier won re-election by 39.3 points over Jeff Frese.
Top-two primary
Mark DeSaulnierDemocrat · winner · incumbent
69.7%178,225
Jeff FreseRepublican
30.3%77,586
255,811 votes
Source: California Secretary of State unofficial resultsUpdated Nov 7, 2026, 12:54 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Mark DeSaulnierJeff Frese
$721.8K
Raised by the campaign
—
$883.5K
Spent by the campaign
—
$467.2K
Cash on hand
—
Campaign money: FEC, through Oct 14, 2026. No FEC filings matched for Jeff Frese.
Source: FEC campaign filingsUpdated Oct 14, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Mark DeSaulnier
- >99%
- Jeff Frese
- <1%
- Projected margin
- D+41.9