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Member of Congress

Susan M. Collins

Republican · U.S. Senator for Maine

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

Compare with another member

118th Congress, Senate

Party unity how it’s measured

40.7%

Voted with their party on 218 of 536 party-unity votes

Missed votes how it’s measured

0%

Missed 0 of 691 votes they were eligible for

Cross-party cosponsoring how it’s measured

64.9%

211 of the 325 bills they cosponsored were introduced by another party

See the bills

Cross-party support how it’s measured

96.3%

26 of the 27 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 food1610
Civil rights310
Crime and justice1900
Defense and veterans1700
Economy and finance1600
Education1710
Energy1900
Environment2610
Foreign affairs and trade1900
Government and elections800
Healthcare1710
Housing1300
Immigration1600
Labor and jobs1710
Social safety net1410
Technology1700
Transportation2100

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 20210%0 of 2
Feb 202168.4%26 of 38
Mar 202160.7%37 of 61
Apr 202140%10 of 25
May 202135.3%12 of 34
Jun 202117.9%5 of 28
Jul 202127.3%9 of 33
Aug 202170.8%34 of 48
Sep 202128.9%11 of 38
Oct 202120.5%9 of 44
Nov 202117.6%3 of 17
Dec 202132%16 of 50
Jan 202233.3%4 of 12
Feb 20227%3 of 43
Mar 202220.4%11 of 54
Apr 202220%3 of 15
May 202242.6%23 of 54
Jun 202231.8%7 of 22
Jul 20220%0 of 29
Aug 202280.5%33 of 41
Sep 202228%7 of 25
Nov 202221.4%3 of 14
Dec 202214.6%6 of 41
Jan 20230%0 of 1
Feb 202311.1%3 of 27
Mar 202317.8%8 of 45
Apr 202312.5%2 of 16
May 202332.4%11 of 34
Jun 202358.8%20 of 34
Jul 202340.9%9 of 22
Sep 202342.9%9 of 21
Oct 202342.9%12 of 28
Nov 202351.4%18 of 35
Dec 202325%5 of 20
Jan 202442.9%6 of 14
Feb 202414.8%4 of 27
Mar 202459%23 of 39
Apr 202469.6%16 of 23
May 202428.6%6 of 21
Jun 20247.7%1 of 13
Jul 202415.8%3 of 19
Aug 202450%1 of 2
Sep 202418.2%4 of 22
Nov 202486.4%38 of 44
Dec 202465.5%19 of 29
Jan 202590%18 of 20
Feb 202585.3%58 of 68
Mar 202598.1%52 of 53
Apr 202574.2%49 of 66
May 2025100%54 of 54
Jun 202590.3%65 of 72
Jul 202574.3%81 of 109
Aug 2025100%23 of 23
Sep 202594.1%32 of 34
Oct 202593.5%58 of 62
Nov 202595.2%20 of 21
Dec 202581.8%27 of 33
Jan 202652.9%9 of 17
Feb 202695.7%22 of 23
Mar 202696%24 of 25
Apr 202648.6%18 of 37
May 202675%12 of 16
Jun 202669%40 of 58
Jul 202682.6%19 of 23
Aug 202666.7%6 of 9
Sep 202676.5%13 of 17

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

    NayAgainst 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

    Yea
  • 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

    NayWith their party
  • 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

    YeaAgainst 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

    YeaAgainst 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

    YeaAgainst 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

    YeaAgainst 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

    YeaAgainst 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

    YeaAgainst 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

    NayAgainst 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 (27)

  • S. 5149: Catching Up Family Caregivers Act of 2024Cosponsor from another party
  • S. 5148: Improving Retirement Security for Family Caregivers Act of 2024Cosponsor from another party
  • S. 5055: Armed Forces Crisis Intervention Notification ActCosponsor from another party
  • S. 4391: Investing in Digital Skills ActCosponsor from another party
  • S. 4325: Lifespan Respite Care Reauthorization Act of 2024Cosponsor from another party
  • S. 4251: Loggers Economic Assistance and Relief ActCosponsor from another party
  • S. 3775: BOLD Infrastructure for Alzheimer's Reauthorization Act of 2024Cosponsor from another party
  • S. 3336: Justice for the Living Victims of Lockerbie ActCosponsor from another party
  • S. 3326: Supporting Seniors with Opioid Use Disorder Act of 2023Cosponsor from another party
  • S. 3297: Medical Nutrition Therapy Act of 2023Cosponsor from another party

See all 27

Cosponsored (325)

  • S. 3: Improving Access to Advance Care Planning ActIntroduced by another party
  • S. 5573: Skinny Labels, Big Savings ActIntroduced by another party
  • S. 5502: Diabetes ActIntroduced by another party
  • S. 5456: Rural Residency Planning and Development Act of 2024Introduced by another party
  • S. 5445: Closing the Contraception Coverage Gap ActIntroduced by another party
  • S. 5418: Alzheimer's Caregiver Support ActIntroduced by another party
  • S. 5400: Improving Access to Emergency Medical Services ActIntroduced by another party
  • S. 5341: A bill making supplemental appropriations for small business disaster relief for the fiscal year ending September 30, 2025.
  • S. 5329: FIGHTING for America Act of 2024Introduced by another party
  • S. 5303: Stand with Israel Act

See all 325

Service

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

  • Senator for Maine

    January 3, 2021 – present · Republican