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U.S. Representative · California 10th District
Mark DeSaulnier
DemocratDistrict D+18119th CongressOn the ballot 2026
Typical swing score18#397 of 433 representatives across tracked bills
Contact Mark DeSaulnier’s office
Official D.C. office details from the congress-legislators datasetWashington, D.C. office2134 Rayburn House Office Building Washington DC 20515-0510
Model
Directional: count only breaks toward the other partyWhy do scores change?v3default (selected)v2 model swing-v2
Signals to watch
What in this member’s district, record and ideology could move them, and in which direction. Their score is the same on every bill they haven’t committed to, so these are the things to watch.Could pull them toward Republicans · 2 signals
- StrongBacks 21 Republican-led tracked billsSponsor or active cosponsor of 21 of the 2090 tracked bills that were introduced by Republicans: H.Con.Res. 38, H.R. 842, H.R. 909, H.R. 979, H.R. 1065 and 16 more.
- Sponsored or cosponsored: H.Con.Res. 38 Directing the President pursuant to section 5(c) of the War Powers Resolution to remove United States Armed Forces from unauthorized hostilities in the Islamic Republic of Iran.
- Sponsored or cosponsored: H.R. 842 Nancy Gardner Sewell Medicare Multi-Cancer Early Detection Screening Coverage Act
- Sponsored or cosponsored: H.R. 909 Crime Victims Fund Stabilization Act of 2025
Show all 10
- Sponsored or cosponsored: H.R. 979 AM Radio for Every Vehicle Act of 2025
- Sponsored or cosponsored:
Term and election
From the congress-legislators datasetOn the ballot 2026
- Current term
- January 3, 2025 – January 3, 2027
- Next election
- November 3, 2026
- Years in office
- 11.8 years
Committees
Seats on a bill’s committee of referral add a in swing-v3- House Committee on EthicsRanking MemberMinority · 1st in seniority
- House Committee on Education and WorkforceMinority · 7th in seniority
- Subcommittee on Health, Employment, Labor, and PensionsRanking Member
- Subcommittee on Higher Education and Workforce Development
- House Committee on Transportation and InfrastructureMinority · 11th in seniority
Voting ideology
first dimension, from VoteviewD median
R median
DeSaulnier← More liberal (−1)More conservative (+1) →
Their score of -0.507 is 0.11 to the left of the House Democratic median (-0.393).
Advocacy scorecards
Their rating vs. the House Democratic average- 119th Congress0House Democratic average: 1 (n=210)
Swing score by bill
swing-v3, directional · a bill marks a member as committed to itShowing 351–400 of 1962 tracked bills, best swing first
| Bill | Their role | Swing score · | ||
|---|---|---|---|---|
| S. 3258Aviation Medication Transparency Act of 2026Summary on Congress.gov | No position yetNow in the Senate | No recorded vote | 28
| Entrenched |
| S. 3266 |