Representative · California · District 10
Mark DeSaulnier
D
ChamberHouse
PartyDemocrat
StateCalifornia
District10th
Mark DeSaulnier is the U.S. Representative for California's 10th District (CA-10).
District Geography
District covers part of Alameda County and Contra Costa County, including Concord, San Ramon, and Walnut Creek and part of Antioch and Dublin.
District boundaries: 119th Congress · U.S. Census Bureau relationship files.
On the Record 98 tracked votes
Biography
Mark James DeSaulnier is an American politician who has served as a U.S. representative from California since 2015. He has represented California's 10th congressional district since 2023, although it was previously numbered the 11th district for his first eight years in office. The district includes most of Contra Costa County, a suburban county in the East Bay. A member of the Democratic Party since 2000, he was previously a member of the Republican Party.
WikipediaFloor Statements
Promoting Resilient Supply Chains Act of 2025OPPOSE
“I rise today to express my outrage about recent FDA regulatory actions on e-cigarettes. On April 30, Reynolds American donated $5 million to MAGA Inc., a Trump-backed super-PAC. In the following 8 days, the President dined with top tobacco executives, and the FDA issued guidance making it easier for tobacco companies to sell flavored e-cigarettes. In 2024, 1.63 million middle and high school students in America used e-cigarettes, and nearly 90 percent of them used flavored products.”
Jul 16, 2026
Voting Record
NayJuly 15, 2026
YeaJuly 13, 2026
YeaJune 3, 2026
NayApril 30, 2026
To direct the removal of United States Armed Forces from Venezuela that have not been authorized by Congress.H.Con.Res. 68
YeaJanuary 22, 2026NayJanuary 22, 2026
NayNovember 18, 2025