Democratic Rep. Mark DeSaulnier won reelection in California’s 10th Congressional District, defeating Republican Jeff Frese, according to The Associated Press.
As of AP’s 9:03 p.m. PST update Nov. 3, DeSaulnier had 118,713 votes, or 71.2%, to Frese’s 48,035 votes, or 28.8%. AP estimated that 54% of votes had been counted.
AP called the race for DeSaulnier at 8:42 p.m. PST Nov. 3. Vote totals remain unofficial and may change as additional ballots are counted.
The district includes Walnut Creek and portions of Contra Costa and Alameda counties. Its boundaries were redrawn for the 2026 election, according to AP’s district guide.
California 10th District results
The following totals reflect AP’s 9:03 p.m. PST update Nov. 3:
Candidate | Party | Votes | Percentage |
|---|---|---|---|
Mark DeSaulnier, incumbent | Democratic | 118,713 | 71.2% |
Jeff Frese | Republican | 48,035 | 28.8% |
Total | 166,748 | 100.0% |
AP estimated that 54% of votes had been counted. Its race call is separate from the official canvassing and certification process.
The candidates
DeSaulnier, a Democrat from Concord, won a seventh term in the U.S. House. He entered Congress in 2015, according to his official congressional biography.
His political career began with his election to the Concord City Council in 1991. He went on to serve on the Contra Costa County Board of Supervisors and in the state Legislature before winning his congressional seat.
He is the top Democrat on the House Subcommittee on Health, Employment, Labor and Pensions, according to his official website.
Frese, a Moraga resident and business owner, campaigned as a political outsider, according to his campaign website. He founded the snack brand Fat Snax, DanvilleSanRamon.com reported.
Where they differ
Cost of living was one area where both candidates’ platforms overlapped, though they proposed different solutions.
Frese’s platform called for ending deficit spending, banning Wall Street firms and hedge funds from buying single-family homes, and blocking foreign ownership of American farmland and family homes, according to his campaign website. He also advocated eight-year congressional term limits and a ban on congressional stock trading.
DeSaulnier emphasized research into how remote work could ease traffic congestion and emissions, along with affordable housing and local transit improvements, according to his campaign’s issues page.
Where to find updated results
Readers can follow districtwide returns through AP’s California U.S. House results page or the California Secretary of State’s District 10 results page.
The Contra Costa County election results page provides returns from the county’s portion of the district.
Election night totals remain unofficial until canvassing and certification are complete. This article will be updated as additional totals become available.
