U.S. House of Representatives, District 10

Top candidate wins seat.

Mark DeSaulnier (D)(incumbent)66.5%
235,697 votes
Katherine Piccinini (R)33.4%
118,319 votes
Race called at 8:35 PM PT on November 5, 2024
95% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

Results are provided by the Associated Press (AP). The AP calls winners by analyzing vote tallies and other election data. Check marks are used to denote a winner only when the AP calls a race.

What does a U.S. representative do?

Representatives are your local community’s voice in the U.S. House of Representatives. Members of Congress write and vote on bills, including the federal budget. The winner will serve a two-year term.

Candidate Statements

Candidate Statements are excerpted from the statements provided to election offices, where available.

Mark DeSaulnier

  • U.S. Representative
  • Democrat
  • Accomplishments: “My guiding principle is: I work for you. I’ve responded to 873,000+ constituent inquiries, helped 12,000+ residents with federal issues, and hosted 213+ town halls. I’ve been a leader in finding common sense solutions.” 
  • Infrastructure: “I’ve prioritized local projects that improve our quality of life … including establishing the fourth bore of the Caldecott Tunnel and securing funding for traffic relief.”
  • Priorities: “Strengthen our economy; fight for women’s rights; cut health care costs; reduce gun violence; oversee the largest infrastructure investment in modern history; help students receive a quality education without being shackled by debt; protect Social Security and Medicare.”
  • desaulnierforcongress.com

Katherine Piccinini

  • Retired businesswoman
  • Republican
  • Priorities: “Provide safe food and water; maintain parental medical freedoms; stop lockdowns, mask mandates and mandatory vaccines; control our financial future — stop reckless spending.” 
  • Education: “Traditional, academic-focused curriculum; stop ‘Sacramento perverse’ legislation from spreading; ‘Leave our children alone,’ stop mutilating and grooming; protect female privacy and fairness in sports; enforce biological competition.” 
  • Public Safety: “Secure the border; stop drug and sex trafficking; support Second Amendment.”
  • piccinini4congress.com

More Results

See results for all elections on the Alameda County ballot.

See results for all elections on the Contra Costa County ballot.

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