KNOW YOUR SENATOR

California — 10th District

California — 10th District is represented in the U.S. House by Mark DeSaulnier. Below is their recent voting record, committee work, contact information, and how they were elected.

Mark DeSaulnier

Mark DeSaulnier D

U.S. Representative, California — 10th District

Next election: November 2026 · current term ends 2027-01-03

46%of eligible voters actively chose them
70%turnout (2024)
53%voted on the prevailing side

How they won (2024)

MARK DESAULNIER (D) won with 241,926 votes, over KATHERINE PICCININI (R) with 121,826. 363,752 votes were cast out of an estimated 521,630 eligible citizens — meaning 30% of eligible voters did not vote in this race.

Contact

District offices

  • Walnut Creek, CA 945973100 Oak Road, Suite 110 · 925-933-2660
  • Antioch, CA 945314703 Lone Tree Way · 925-754-0716

Committee assignments

  • House Committee on Transportation and Infrastructure The Transportation and Infrastructure Committee has jurisdiction over all modes of transportation: aviation, maritime and waterborne transportation, highways, bridges, mass transit, and railroads. The Committee also has jurisdiction over other aspects of our national infrastructure, such as clean water and waste water management, the transport of resources by pipeline, flood damage reduction, the management of federally owned real estate and public buildings, the development of economically depressed rural and urban areas, disaster preparedness and response, and hazardous materials transportation.
  • House Committee on Education and Workforce The committee has legislative jurisdiction over matters related to higher and lower education, workforce development and protections, and health, employment, labor, and pensions.
  • House Committee on Ethics — Ranking Member The House Committee on Ethics has the jurisdiction to administer travel, gift, financial disclosure, outside income, and other regulations; advise members and staff; issue advisory opinions and investigate potential ethics violations. The Committee is the only standing committee of the House whose membership is evenly divided between each political party. The Committee includes five members of each party. Also, unlike other committees, the day-to-day work of the Committee on Ethics is conducted by a staff that is nonpartisan by rule.

Recent roll-call votes

  • YeaH R 9237 On Motion to Recommit (16-Jul-2026; Failed; outcome went against their vote)
  • YeaH R 5362 On Motion to Suspend the Rules and Pass (16-Jul-2026; Passed; outcome matched their vote)
  • NayH R 8595 On Passage (15-Jul-2026; Passed; outcome went against their vote)
  • YeaH R 8595 On Motion to Recommit (15-Jul-2026; Failed; outcome went against their vote)
  • NoH R 8595 On Agreeing to the Amendment (15-Jul-2026; Failed; outcome matched their vote)
  • NoH R 8595 On Agreeing to the Amendment (15-Jul-2026; Failed; outcome matched their vote)
  • AyeH R 8595 On Agreeing to the Amendment (15-Jul-2026; Failed; outcome went against their vote)
  • NoH R 8595 On Agreeing to the Amendment (15-Jul-2026; Failed; outcome matched their vote)
  • NoH R 8595 On Agreeing to the Amendment (15-Jul-2026; Failed; outcome matched their vote)
  • NayH R 1181 On Passage (14-Jul-2026; Passed; outcome went against their vote)
  • YeaH R 1181 On Motion to Recommit (14-Jul-2026; Failed; outcome went against their vote)
  • NayH R 139 On Passage (14-Jul-2026; Passed; outcome went against their vote)
  • NoH RES 1423 On Agreeing to the Resolution (14-Jul-2026; Passed; outcome went against their vote)
  • NayH RES 1423 On Ordering the Previous Question (14-Jul-2026; Passed; outcome went against their vote)
  • YeaH R 8897 On Motion to Suspend the Rules and Pass, as Amended (13-Jul-2026; Passed; outcome matched their vote)
  • YeaH R 3106 On Motion to Suspend the Rules and Pass (13-Jul-2026; Passed; outcome matched their vote)
  • YeaH RES 1399 On Agreeing to the Resolution (30-Jun-2026; Passed; outcome matched their vote)
  • YeaH CON RES 108 On Agreeing to the Resolution (30-Jun-2026; Failed; outcome went against their vote)
  • NoH RES 1398 On Agreeing to the Resolution (30-Jun-2026; Failed; outcome matched their vote)
  • NayH RES 1398 On Ordering the Previous Question (30-Jun-2026; Passed; outcome went against their vote)
  • YeaH R 7128 On Motion to Suspend the Rules and Pass, as Amended (29-Jun-2026; Passed; outcome matched their vote)
  • NayH R 7757 On Motion to Suspend the Rules and Pass, as Amended (29-Jun-2026; Passed; outcome went against their vote)
  • YeaH R 2478 On Motion to Suspend the Rules and Pass, as Amended (25-Jun-2026; Passed; outcome matched their vote)
  • YeaH R 915 On Motion to Suspend the Rules and Pass, as Amended (24-Jun-2026; Passed; outcome matched their vote)
  • YeaH R 7401 On Motion to Suspend the Rules and Pass (24-Jun-2026; Passed; outcome matched their vote)
  • YeaH R 6644 On Motion to Suspend the Rules and Concur in Senate Adt to House Adt to Senate Adt (23-Jun-2026; Passed; outcome matched their vote)
  • YeaS 629 On Motion to Suspend the Rules and Pass (23-Jun-2026; Passed; outcome matched their vote)
  • NayH RES 1335 On Agreeing to the Resolution (11-Jun-2026; Passed; outcome went against their vote)
  • NayH R 9238 On Motion to Suspend the Rules and Pass (11-Jun-2026; Failed; outcome matched their vote)
  • NayH R 8464 On Passage (10-Jun-2026; Passed; outcome went against their vote)

Financial disclosures

This member across the public record

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