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An independent, non-government record of how Congress votes Here’s how we know

Congress Vote Tracker is a private, independent project. It is not affiliated with the U.S. government, Congress, or any agency, and it does not speak for them. Every vote count is drawn from official public records (Congress.gov, the House Clerk, and Senate.gov) and linked back to the source on every page.

Senate Voting Records: Every Senator's Scorecard

The party split of the U.S. Senate and how often each Senator crosses the aisle.

Scorecards overview → · House scorecards → · How these scores are computed →

Each member card below shows computed party loyalty once the daily roll-call data loads. For chamber-wide balance of power and cross-the-aisle leaderboards, see the scorecards overview.

How Party Loyalty Is Distributed

Every one of these Senators placed by how often they vote with their own party in the current window. Hover or focus a bar to see who falls in it; the most independent member is called out below the chart. Present and missed votes are excluded.

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All 100 Senators of the 119th Congress

A profile page for every U.S. Senator: official portrait, party, state, and a direct line to their roll-call record. Filter by party or state, search by name, or return to the scorecards overview →

Showing 100 members

Notable Senators · Multi-Organization Ratings

Data note: Scores reflect the most recently published ratings from each organization (primarily 2023-2024 for ACU and ADA, as 2025 ratings publish on a lag; Heritage Action and LCV update quarterly). Click an organization on the scorecards overview to verify current ratings. Members with no score on a given system are marked N/A.

Notable Senators and their ratings from major scorecard organizations
MemberParty/StateChamberACUHeritage ActionLCVADA
Tom Cotton
Senator since 2015		R–ARSenate979230
Ted Cruz
Senator since 2013		R–TXSenate999600
Rand Paul
Senator since 2011		R–KYSenate878885
Susan Collins
Senator since 1997		R–MESenate54486230
Lisa Murkowski
Senator since 2002		R–AKSenate59525725
Bernie Sanders
Senator since 2007 (I-VT)		I–VTSenate2493100
Elizabeth Warren
Senator since 2013		D–MASenate3596100
Chuck Schumer
Senate Minority Leader		D–NYSenate4695100
Joe Manchin
Former Senator, now Governor of WV (I-WV as of 2025)		I–WVSenate46425342
John Thune
Senate Majority Leader		R–SDSenate888260

About These Scorecards

Each member page combines advocacy-group ratings with participation computed directly from official Senate roll-call records. For the formulas, see how we score Congress; for definitions, the glossary.

congressvotetracker.org

An independent civic project, not affiliated with the U.S. government or any agency. Vote data is sourced from official public records (Congress.gov, the House Clerk, and Senate.gov).