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Member of Congress

Bill Cassidy

Republican · U.S. Senator for Louisiana

Official biography (Biographical Directory of the U.S. Congress)

Compare with another member

118th Congress, Senate

Party unity how it’s measured

86.7%

Voted with their party on 438 of 505 party-unity votes

Missed votes how it’s measured

6.2%

Missed 43 of 691 votes they were eligible for

Cross-party cosponsoring how it’s measured

40.1%

135 of the 337 bills they cosponsored were introduced by another party

See the bills

Cross-party support how it’s measured

56.6%

47 of the 83 bills they introduced have a cosponsor from another party

See the bills

How they voted by issue area

Each vote counts in every issue area its bill has. A Yea on a procedural vote or motion doesn’t mean support for the bill. How we count these

Issue areaYeaNayPresent or not votingVotes
Agriculture and food1322
Civil rights400
Crime and justice1801
Defense and veterans1511
Economy and finance1411
Education1521
Energy1711
Environment2223
Foreign affairs and trade1711
Government and elections800
Healthcare1521
Housing1111
Immigration1411
Labor and jobs1521
Social safety net1311
Technology1511
Transportation1911

Party unity over time

By month, across every Congress we cover in the Senate. Months with few party-unity votes can swing widely.

Show as a table
MonthParty unityWith party
Jan 2021100%2 of 2
Feb 202192.1%35 of 38
Mar 202185%51 of 60
Apr 2021100%25 of 25
May 202181.8%27 of 33
Jun 202189.3%25 of 28
Jul 202181.3%26 of 32
Aug 202185.4%41 of 48
Sep 202184.8%28 of 33
Oct 202195.5%42 of 44
Nov 2021100%15 of 15
Dec 202191.3%42 of 46
Jan 202287.5%7 of 8
Feb 202286%37 of 43
Mar 202284.9%45 of 53
Apr 202286.7%13 of 15
May 202294.3%50 of 53
Jun 202277.3%17 of 22
Jul 202265.5%19 of 29
Aug 202292.7%38 of 41
Sep 202273.9%17 of 23
Nov 2022100%13 of 13
Dec 202270.7%29 of 41
Jan 2023100%1 of 1
Feb 202396.3%26 of 27
Mar 202373.3%33 of 45
Apr 202387.5%14 of 16
May 202394.1%32 of 34
Jun 202385.3%29 of 34
Jul 202380%16 of 20
Sep 202394.4%17 of 18
Oct 202392.9%26 of 28
Nov 202394.1%32 of 34
Dec 202350%7 of 14
Jan 202469.2%9 of 13
Feb 202464%16 of 25
Mar 202492.3%36 of 39
Apr 2024100%23 of 23
May 202481%17 of 21
Jun 202484.6%11 of 13
Jul 2024100%19 of 19
Aug 2024100%2 of 2
Sep 202490.9%20 of 22
Nov 202496.6%28 of 29
Dec 202485.7%24 of 28
Jan 2025100%20 of 20
Feb 2025100%68 of 68
Mar 202597.9%47 of 48
Apr 2025100%66 of 66
May 2025100%54 of 54
Jun 202598.6%71 of 72
Jul 2025100%102 of 102
Aug 2025100%12 of 12
Sep 202596.4%27 of 28
Oct 202598.2%56 of 57
Nov 2025100%21 of 21
Dec 2025100%32 of 32
Jan 2026100%16 of 16
Feb 2026100%23 of 23
Mar 2026100%23 of 23
Apr 2026100%37 of 37
May 202686.7%13 of 15
Jun 202682.1%46 of 56
Jul 2026100%23 of 23
Aug 202688.9%8 of 9
Sep 2026100%15 of 15

Votes

Every vote that counts in our statistics that they were eligible for, newest first.

Showing 1–50 of 691 votes

  • Dec 21, 2024Roll call 339

    H.R. 10545: On Passage of the Bill

    American Relief Act, 2025

    Final passage · Bill Passed · Agriculture and food, Crime and justice, Defense and veterans, Economy and finance, Education, Energy, Environment, Foreign affairs and trade, Government and elections, Healthcare, Housing, Immigration, Labor and jobs, Social safety net, Technology, Transportation

    Yea
  • Dec 21, 2024Roll call 338

    H.R. 82: On Passage of the Bill

    Social Security Fairness Act of 2023

    Final passage · Bill Passed · Social safety net

    Yea
  • Dec 20, 2024Roll call 337

    H.R. 82: On the Motion (Motion to Waive All Applicable Budgetary Discipline Re: H.R. 82)

    Social Security Fairness Act of 2023

    Procedural · Motion Agreed to · Social safety net

    YeaAgainst their party
  • Dec 20, 2024Roll call 336

    H.R. 82: On the Amendment

    Social Security Fairness Act of 2023

    Amendment · Amendment Rejected · Social safety net

    NayAgainst their party
  • Dec 20, 2024Roll call 335

    H.R. 82: On the Amendment

    Social Security Fairness Act of 2023

    Amendment · Amendment Rejected · Social safety net

    NayAgainst their party
  • Dec 20, 2024Roll call 334

    H.R. 82: On the Amendment

    Social Security Fairness Act of 2023

    Amendment · Amendment Rejected · Social safety net

    YeaWith their party
  • Dec 20, 2024Roll call 333

    H.R. 82: On the Amendment

    Social Security Fairness Act of 2023

    Amendment · Amendment Rejected · Social safety net

    Nay
  • Dec 20, 2024Roll call 332

    On the Nomination

    Confirmation: Serena Raquel Murillo, of California, to be U.S. District Judge for the Central District of California

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 20, 2024Roll call 331

    On the Cloture Motion

    Motion to Invoke Cloture: Serena Raquel Murillo to be U.S. District Judge for the Central District of California

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 20, 2024Roll call 330

    On the Nomination

    Confirmation: Benjamin J. Cheeks, of California, to be U.S. District Judge for the Southern District of California

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 20, 2024Roll call 329

    On the Cloture Motion

    Motion to Invoke Cloture: Benjamin J. Cheeks to be U.S. District Judge for the Southern District of California

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 19, 2024Roll call 328

    H.R. 82: On the Motion to Proceed

    Social Security Fairness Act of 2023

    Procedural · Motion to Proceed Agreed to · Social safety net

    Yea
  • Dec 18, 2024Roll call 327

    S. 4367: On the Motion (Motion to Concur in the House Amendment to S. 4367)

    Thomas R. Carper Water Resources Development Act of 2024

    Final passage · Motion Agreed to · Education, Environment, Transportation

    Yea
  • Dec 18, 2024Roll call 326

    H.R. 82: On Cloture on the Motion to Proceed

    Social Security Fairness Act of 2023

    Cloture · Cloture on the Motion to Proceed Agreed to · Social safety net

    YeaAgainst their party
  • Dec 18, 2024Roll call 325

    H.R. 5009: On the Motion (Motion to Concur in the House Amendment to the Senate Amendment to H.R. 5009)

    Servicemember Quality of Life Improvement and National Defense Authorization Act for Fiscal Year 2025

    Final passage · Motion Agreed to · Agriculture and food, Civil rights, Crime and justice, Defense and veterans, Education, Energy, Environment, Foreign affairs and trade, Healthcare, Housing, Immigration, Labor and jobs, Social safety net, Technology, Transportation

    Yea
  • Dec 16, 2024Roll call 324

    H.R. 5009: On the Cloture Motion

    Servicemember Quality of Life Improvement and National Defense Authorization Act for Fiscal Year 2025

    Cloture · Cloture Motion Agreed to · Agriculture and food, Civil rights, Crime and justice, Defense and veterans, Education, Energy, Environment, Foreign affairs and trade, Healthcare, Housing, Immigration, Labor and jobs, Social safety net, Technology, Transportation

    Not voting
  • Dec 12, 2024Roll call 323

    On the Nomination

    Confirmation: Matthew James Marzano, of Illinois, to be a Member of the Nuclear Regulatory Commission

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 12, 2024Roll call 322

    On the Cloture Motion

    Motion to Invoke Cloture: Matthew James Marzano to be a Member of the Nuclear Regulatory Commission

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 11, 2024Roll call 321

    On the Nomination

    Confirmation: Noel Wise, of California, to be U.S. District Judge for the Northern District of California

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 11, 2024Roll call 320

    On the Cloture Motion

    Motion to Invoke Cloture: Lauren McGarity McFerran to be a Member of the National Labor Relations Board

    Cloture · Cloture Motion Rejected

    NayWith their party
  • Dec 10, 2024Roll call 319

    On the Nomination

    Confirmation: Cynthia Valenzuela Dixon, of California, to be U.S. District Judge for the Central District of California

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 10, 2024Roll call 318

    On the Nomination

    Confirmation: Keli Marie Neary, of Pennsylvania, to be U.S. District Judge for the Middle District of Pennsylvania

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 9, 2024Roll call 317

    On the Nomination

    Confirmation: Tiffany Rene Johnson, of Georgia, to be U.S. District Judge for the Northern District of Georgia

    Final passage · Nomination Confirmed

    Not voting
  • Dec 5, 2024Roll call 316

    On the Cloture Motion

    Motion to Invoke Cloture: Keli Marie Neary to be U.S. District Judge for the Middle District of Pennsylvania

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 5, 2024Roll call 315

    On the Cloture Motion

    Motion to Invoke Cloture: Tiffany Rene Johnson to be U.S. District Judge for the Northern District of Georgia

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 5, 2024Roll call 314

    On the Nomination

    Confirmation: Sarah Morgan Davenport, of New Mexico, to be U.S. District Judge for the District of New Mexico

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 4, 2024Roll call 313

    On the Cloture Motion

    Motion to Invoke Cloture: Sarah Morgan Davenport to be U.S. District Judge for the District of New Mexico

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 4, 2024Roll call 312

    On the Nomination

    Confirmation: Elizabeth C. Coombe, of New York, to be U.S. District Judge for the Northern District of New York

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 4, 2024Roll call 311

    On the Cloture Motion

    Motion to Invoke Cloture: Elizabeth C. Coombe to be U.S. District Judge for the Northern District of New York

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 4, 2024Roll call 310

    On the Nomination

    Confirmation: Anthony J. Brindisi, of New York, to be U.S. District Judge for the Northern District of New York

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 4, 2024Roll call 309

    On the Cloture Motion

    Motion to Invoke Cloture: Anthony J. Brindisi to be U.S. District Judge for the Northern District of New York

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Dec 3, 2024Roll call 308

    On the Nomination

    Confirmation: Gail A. Weilheimer, of Pennsylvania, to be U.S. District Judge for the Eastern District of Pennsylvania

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 3, 2024Roll call 307

    On the Nomination

    Confirmation: Catherine Henry, of Pennsylvania, to be U.S. District Judge for the Eastern District of Pennsylvania

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 3, 2024Roll call 306

    On the Nomination

    Confirmation: Sparkle L. Sooknanan, of the District of Columbia, to be U.S. District Judge for the District of Columbia

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 2, 2024Roll call 305

    On the Nomination

    Confirmation: Brian Edward Murphy, of Massachusetts, to be U.S. District Judge for the District of Massachusetts

    Final passage · Nomination Confirmed

    NayWith their party
  • Dec 2, 2024Roll call 304

    On the Nomination

    Confirmation: Anne Hwang, of California, to be U.S. District Judge for the Central District of California

    Final passage · Nomination Confirmed

    NayWith their party
  • Nov 21, 2024Roll call 303

    On the Nomination

    Confirmation: Sharad Harshad Desai, of Arizona, to be U.S. District Judge for the District of Arizona

    Final passage · Nomination Confirmed

    Yea
  • Nov 21, 2024Roll call 302

    On the Cloture Motion

    Motion to Invoke Cloture: Gail A. Weilheimer to be U.S. District Judge for the Eastern District of Pennsylvania

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 21, 2024Roll call 301

    On the Cloture Motion

    Motion to Invoke Cloture: Noel Wise to be U.S. District Judge for the Northern District of California

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 21, 2024Roll call 300

    On the Cloture Motion

    Motion to Invoke Cloture: Catherine Henry to be U.S. District Judge for the Eastern District of Pennsylvania.

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 20, 2024Roll call 299

    On the Cloture Motion

    Motion to Invoke Cloture: Cynthia Valenzuela Dixon to be U.S. District Judge for the Central District of California

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 20, 2024Roll call 298

    On the Cloture Motion

    Motion to Invoke Cloture: Anne Hwang to be U.S. District Judge for the Central District of California

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 20, 2024Roll call 297

    On the Cloture Motion

    Motion to Invoke Cloture: Brian Edward Murphy to be U.S. District Judge for the District of Massachusetts

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 20, 2024Roll call 296

    On the Cloture Motion

    Motion to Invoke Cloture: Sparkle L. Sooknanan to be U.S. District Judge for the District of Columbia

    Cloture · Cloture Motion Agreed to

    NayWith their party
  • Nov 20, 2024Roll call 295

    S.J.Res. 117: On the Motion to Proceed

    A joint resolution relating to the disapproval of the Presidential report with respect to the indebtedness of the Government of Ukraine.

    Procedural · Motion to Proceed Rejected · Foreign affairs and trade

    YeaWith their party
  • Nov 20, 2024Roll call 294

    S.J.Res. 115: On the Motion to Discharge

    A joint resolution providing for congressional disapproval of the proposed license amendment for the export of certain defense articles, defense services, and technical data to Israel.

    Procedural · Motion to Discharge Rejected · Foreign affairs and trade

    Nay
  • Nov 20, 2024Roll call 293

    S.J.Res. 113: On the Motion to Discharge

    A joint resolution providing for congressional disapproval of the proposed foreign military sale to the Government of Israel of certain defense articles and services.

    Procedural · Motion to Discharge Rejected · Foreign affairs and trade

    Nay
  • Nov 20, 2024Roll call 292

    S.J.Res. 111: On the Motion to Discharge

    A joint resolution providing for congressional disapproval of the proposed foreign military sale to the Government of Israel of certain defense articles and services.

    Procedural · Motion to Discharge Rejected · Foreign affairs and trade

    Nay
  • Nov 20, 2024Roll call 291

    On the Nomination

    Confirmation: Amir H. Ali, of the District of Columbia, to be U.S. District Judge for the District of Columbia

    Final passage · Nomination Confirmed

    NayWith their party
  • Nov 20, 2024Roll call 290

    On the Cloture Motion

    Motion to Invoke Cloture: Amir H. Ali to be U.S. District Judge for the District of Columbia

    Cloture · Cloture Motion Agreed to

    NayWith their party

Bills

The bills and joint resolutions behind the bipartisanship numbers, newest first. How we count these

Introduced (83)

  • S. 5515: Disaster Housing Reform for American Families ActCosponsor from another party
  • S. 5466: Flood Insurance Affordability Tax Credit ActCosponsor from another party
  • S. 5433: Genomic Data Protection ActCosponsor from another party
  • S. 5390: Health Care Cybersecurity and Resiliency Act of 2024Cosponsor from another party
  • S. 5370: Improve and Enhance the Work Opportunity Tax Credit ActCosponsor from another party
  • S. 5269: VetPAC Act of 2024Cosponsor from another party
  • S. 5213: Union Members Right to Know Act
  • S. 5174: Restoring Integrity in Fiduciary Duty Act
  • S. 5029: Small Biotech Innovation Act
  • S. 5018: Restore Protections for Dialysis Patients ActCosponsor from another party

See all 83

Cosponsored (337)

  • S. 5620: A bill to require the Government Accountability Office to conduct a study on the use of commercial-off-the-shelf products and artificial intelligence technologies by the Internal Revenue Service.Introduced by another party
  • S. 5552: Protecting Global Fisheries Act of 2024Introduced by another party
  • S. 5437: OPTN Fee Collection Authority Act
  • S. 5404: Summit of the Americas ActIntroduced by another party
  • S. 5358: Knife Owners’ Protection Act of 2024
  • S. 5341: A bill making supplemental appropriations for small business disaster relief for the fiscal year ending September 30, 2025.
  • S. 5332: RELIEF Act
  • S. 5303: Stand with Israel Act
  • S. 5302: Federal Advisory Committee Database ActIntroduced by another party
  • S. 5280: Improving IRS Customer Service ActIntroduced by another party

See all 337

Service

Seats held in the Congresses we cover, from the 117th (2021) on.

  • Senator for Louisiana

    January 3, 2021 – present · Republican