MARK'S 2026 CONGRESSIONAL CAMPAIGN
Mark is a progressive voice in Congress representing the values and interests of California’s 10th Congressional District. A leader on improving transportation and reducing commute times, protecting workers’ rights, and increasing educational opportunities, Mark has a proven track record of supporting the middle class and improving the quality of life of families in the East Bay and across the country. Mark is focused on growing the economy, lowering inflation, cutting health care costs, expanding affordable housing, and protecting our democracy.
ENDORSEMENTS
Mark is proud to have the support of leaders, organizations, and residents across our community and looks forward to connecting with voters in the district and earning their continued support for his re-election in 2026.
Join organizations, local and statewide officials and many Contra Costa voters in endorsing Congressman DeSaulnier for re-election.
I WORK FOR YOU!
Throughout my time in Congress, my guiding principle has always been this: I WORK FOR YOU. I would be honored to have your support in running for re-election to represent the East Bay in Congress. Together we can promote our shared progressive values, and fight to make America more just, fair, and equal.
I thank you for your support.
Meet Mark DeSaulnier.
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Since 2023, Mark DeSaulnier has represented California’s 10th Congressional District, which covers almost all of Contra Costa County and parts of Alameda County. Previously, he represented the 11th Congressional District for 8 years until redistricting in 2022. He is a leader in Congress on the issues that matter most to California families, like guaranteeing a livable wage, affordable and accessible education, and ensuring government is accountable to the public.
The Issues
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JOBS, WORKERS, & THE FUTURE OF WORK
Fighting to ensure workers have a real voice as AI and automation reshape the economy.
LOCAL NEWS, BIG TECH, & ACCOUNTABILITY
Fighting to save local journalism and make tech platforms pay their fair share.
IMMIGRATION
Pushing for humane, functional reform and dignity for families already here.
ENVIRONMENT & CLEAN AIR
Protecting clean air standards and accelerating the transition to clean energy.
HEALTHCARE & CANCER RESEARCH
Protecting medical research funding and expanding access to quality care for every patient.
WOMEN'S RIGHTS & REPRODUCTIVE FREEDOM
Fighting to restore and protect every woman's right to make her own health care decisions.
COST OF LIVING, HOUSING, & TRANSPORTATION
Lowering costs and expanding housing so working families can afford to stay.
MENTAL HEALTH & YOUTH
Expanding mental health support for kids before they reach a crisis point.
VETERANS
Making sure every veteran gets the benefits and care they've earned.
ACCOUNTABILITY & ETHICS
Holding Congress to a higher standard and restoring trust in government.
SAFE COMMUNITIES & GUN VIOLENCE
Investing in evidence-based solutions that actually reduce gun violence.
CIVIL RIGHTS
Fighting for dignity, equality, and justice under the law for everyone.