All members

Former member of Congress

Markwayne Mullin

Republican · Former U.S. Senator for Oklahoma

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

Compare with another member

118th Congress, Senate

Party unity how it’s measured

94.8%

Voted with their party on 478 of 504 party-unity votes

Missed votes how it’s measured

5.6%

Missed 39 of 691 votes they were eligible for

Cross-party cosponsoring how it’s measured

28.3%

52 of the 184 bills they cosponsored were introduced by another party

See the bills

Cross-party support how it’s measured

43.5%

10 of the 23 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 food1511
Civil rights400
Crime and justice1720
Defense and veterans1520
Economy and finance1420
Education1620
Energy1720
Environment2421
Foreign affairs and trade1630
Government and elections710
Healthcare1530
Housing1210
Immigration1321
Labor and jobs1620
Social safety net1410
Technology1520
Transportation1920

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 2023100%1 of 1
Feb 2023100%27 of 27
Mar 202397.8%44 of 45
Apr 2023100%16 of 16
May 202396.6%28 of 29
Jun 202397.1%33 of 34
Jul 202395.2%20 of 21
Sep 2023100%21 of 21
Oct 202396.4%27 of 28
Nov 202394.1%32 of 34
Dec 202393.3%14 of 15
Jan 202478.6%11 of 14
Feb 202492.6%25 of 27
Mar 202493.5%29 of 31
Apr 2024100%22 of 22
May 202480%12 of 15
Jun 2024100%13 of 13
Jul 2024100%16 of 16
Aug 202450%1 of 2
Sep 202490.9%20 of 22
Nov 2024100%43 of 43
Dec 202482.1%23 of 28
Jan 2025100%20 of 20
Feb 2025100%68 of 68
Mar 202598.1%52 of 53
Apr 2025100%52 of 52
May 2025100%54 of 54
Jun 2025100%72 of 72
Jul 2025100%95 of 95
Aug 2025100%23 of 23
Sep 202593.1%27 of 29
Oct 2025100%61 of 61
Nov 2025100%20 of 20
Dec 2025100%33 of 33
Jan 202688.2%15 of 17
Feb 2026100%23 of 23
Mar 2026100%14 of 14

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

    Not voting
  • 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

    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

    Nay
  • 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 (23)

  • S. 5619: Quapaw Tribal Settlement Act of 2024
  • S. 4823: Small Businesses before Bureaucrats Act
  • S. 4755: Traumatic Brain Injury Program Reauthorization Act of 2024Cosponsor from another party
  • S. 4501: WIOA Performance Accountability Improvement Act
  • S. 4498: WIOA Planning Extension ActCosponsor from another party
  • S.J.Res. 95: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy CCR Surface Impoundments".
  • S. 4204: MVP ActCosponsor from another party
  • S. 4078: EASE Act of 2024Cosponsor from another party
  • S. 3358: Black Vulture Relief Act of 2023
  • S. 3321: Lowering Broadband Costs for Consumers Act of 2023Cosponsor from another party

See all 23

Cosponsored (184)

  • S. 5375: Vision Lab Choice Act of 2024Introduced by another party
  • S. 5314: A bill to designate the medical center of the Department of Veterans Affairs in Tulsa, Oklahoma, as the James Mountain Inhofe VA Medical Center.
  • S. 5303: Stand with Israel Act
  • S. 5224: Modern Firearm Safety Act
  • S.J.Res. 104: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the National Highway Traffic Safety Administration relating to "Corporate Average Fuel Economy Standards for Passenger Cars and Light Trucks for Model Years 2027 and Beyond and Fuel Efficiency Standards for Heavy-Duty Pickup Trucks and Vans for Model Years 2030 and Beyond".
  • S. 4776: Older Americans Act Reauthorization Act of 2024Introduced by another party
  • S. 4719: GRID Act of 2024Introduced by another party
  • S. 4680: Secretary General Jens Stoltenberg Congressional Gold Medal ActIntroduced by another party
  • S. 4652: Firearms Interstate Commerce Reform Act
  • S. 4610: A bill to amend title 36, United States Code, to designate the bald eagle as the national bird.Introduced by another party

See all 184

Service

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

  • Senator for Oklahoma

    January 3, 2023 – March 23, 2026 · Republican

  • Representative for Oklahoma's 2nd district

    January 3, 2021 – January 3, 2023 · Republican