Former senator · Oklahoma

Markwayne Mullin

Markwayne Mullin served in Congress from 2013 to 2026, last as a Republican senator from Oklahoma. In the 119th Congress, 723 roll calls were held while they served; they missed 40, and cast 630 of 635 party-unity votes with the majority of their caucus.

Party: Republican
Chamber: Senate; Former
In Congress since: Jan 3, 2013
Last term ended: Mar 23, 2026

Open in the Congress explorer Official record

Photo: Government Publishing Office (public domain)

Record by Congress

Counts with their denominators for each Congress and chamber served. Ranks are among members who served most of that Congress (100 or more roll calls): rank 1 did it most often. A description, not a grade.

Congress	Roll calls	Missed	Votes with party	Sponsored	Cosponsored across the aisle
119th CongressSenate	723	5.5%40 of 723 · rank 16 of 101	99%630 of 635 · rank 49 of 101	231 became law	19%30 of 157
118th CongressSenate	691	5.6%39 of 691 · rank 27 of 101	95%480 of 506 · rank 77 of 101	250 became law	29%70 of 240
117th CongressHouse of Representatives	997	4.0%40 of 997 · rank 50 of 443	99%552 of 560 · rank 172 of 443	220 became law	34%117 of 340

Ideology (DW-NOMINATE)

Voteview's DW-NOMINATE first dimension estimates where members sit from all their roll calls: liberal (−1) to conservative (+1). It describes voting patterns, not views. Shown for the 119th Congress (Senate), with each party's median and the chamber's range.

Liberal −1+0.53+1 Conservative

Source: Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/

Votes against their party

The latest party-unity votes on bills and amendments where the member voted yea or nay against most of their caucus.

H.R. 7148: Consolidated Appropriations Act, 2026Nay
Jan 30, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–67· Against party
H.R. 1968: Full-Year Continuing Appropriations and Extensions Act, 2025Nay
Mar 14, 2025· Senate· Amendments· On the Amendment· Amendment Rejected 27–73· Against party
H.R. 82: Social Security Fairness Act of 2023Nay
Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 34–62· Against party
H.R. 82: Social Security Fairness Act of 2023Nay
Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 32–64· Against party
H.R. 82: Social Security Fairness Act of 2023Nay
Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 28–67· Against party
H.R. 4366: Consolidated Appropriations Act, 2024Nay
Oct 26, 2023· Senate· Amendments· On the Amendment· Amendment Rejected 35–62· Against party
S. 2226: National Defense Authorization Act for Fiscal Year 2024Yea
Jul 27, 2023· Senate· Amendments· On the Amendment· Amendment Agreed to 61–37· Against party
H.R. 3746: Fiscal Responsibility Act of 2023Yea
Jun 1, 2023· Senate· Passage· On Passage of the Bill· Bill Passed 63–36· Against party

Recent votes

The latest roll calls on bills and amendments, with the member's recorded position.

H.R. 6644: 21st Century ROAD to Housing ActYea
Mar 12, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 89–10
H.R. 6644: 21st Century ROAD to Housing ActYea
Mar 11, 2026· Senate· Amendments· On the Amendment· Amendment Agreed to 84–10
H.J.Res. 142: Disapproving the action of the District of Columbia Council in approving the D.C. Income and Franchise Tax Conformity and Revision Temporary Amendment Act of 2025.Yea
Feb 12, 2026· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 49–47
H.R. 7148: Consolidated Appropriations Act, 2026Yea
Jan 30, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 71–29
H.R. 7148: Consolidated Appropriations Act, 2026Nay
Jan 30, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 49–51
H.R. 7148: Consolidated Appropriations Act, 2026Nay
Jan 30, 2026· Senate· Amendments· On the Amendment· Amendment Rejected 32–67· Against party
H.R. 6938: Commerce, Justice, Science; Energy and Water Development; and Interior and Environment Appropriations Act, 2026Yea
Jan 15, 2026· Senate· Passage· On Passage of the Bill· Bill Passed 82–15
S.J.Res. 82: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Office of the Secretary of the Department of Health and Human Services relating to "Policy on Adhering to the Text of the Administrative Procedure Act".Nay
Dec 18, 2025· Senate· Passage· On the Joint Resolution· Joint Resolution Defeated 50–50
S.Res. 532: An executive resolution authorizing the en bloc consideration in Executive Session of certain nominations on the Executive Calendar.Yea
Dec 11, 2025· Senate· Passage· On the Resolution· Resolution Agreed to 52–47
H.J.Res. 131: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to Coastal Plain Oil and Gas Leasing Program Record of Decision.Yea
Dec 4, 2025· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 49–45
H.J.Res. 130: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to Buffalo Field Office Record of Decision and Approved Resource Management Plan Amendment.Not voting
Nov 20, 2025· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 51–43
H.R. 5371: Continuing Appropriations, Agriculture, Legislative Branch, Military Construction and Veterans Affairs, and Extensions Act, 2026Yea
Nov 10, 2025· Senate· Passage· On Passage of the Bill· Bill Passed 60–40

Committees

Seats as published by the congress-legislators project. Past seats are those no longer listed since Analisa began recording them.

No committee seats are listed.

Campaign money

What the member's campaigns reported receiving, per FEC two-year cycle, and the federal contracts of the organizations that sponsor the giving PACs (each sponsor matched to a contract recipient by AI, with its probability). Comparisons of public records: neither explains the other.

2026 cycle

Raised: $3.2M; through Jun 30, 2026
Cash on hand: $1.4M
From committees: $979.8K; 314 committees
From contractor PACs: $255.6K; 85 PACs · 26% of committee money

IndividualsPACsPartySelf

Largest gifts from PACs of federal contractors, 2026

PAC sponsor	Given	Matched contract recipient	Its contracts, FY2026
google llcgoogle llc netpac	$10K	GOOGLE LLCAI match · 94% · the same organization	$9.1M
general dynamics corporationgeneral dynamics corporation political action committee (general dynamics employee pac)	$7,000	GENERAL DYNAMICS-OTS, INC.AI match · 100% · of one corporate family	$29.3K
chenega corporationchenega corporation pac (chenega pac)	$6,500	CHENEGA SYSTEMS, LLCAI match · 100% · of one corporate family	$28.5M
rtx corporationemployees of rtx corporation political action committee	$5,500	RTX CORPORATIONAI match · 100% · the same organization	$3.9B
amgen inc.amgen inc. political action committee	$5,500	AMGEN INC.AI match · 99% · the same organization	$0
national association of broadcastersnational association of broadcasters political action committee (nabpac)	$5,000	NATIONAL ASSOCIATION OF BROADCASTERSAI match · 100% · the same organization	$0
international paperinternational paper political action committee (ip-pac)	$5,000	INTERNATIONAL PAPER COMPANYAI match · 100% · the same organization	—
abbott laboratoriesabbott laboratories employee political action committee	$5,000	ABBOTT LABORATORIES INC.AI match · 100% · the same organization	$90M
northrop grumman corporationemployees of northrop grumman corporation pac	$5,000	NORTHROP GRUMMAN SYSTEMS CORPORATIONAI match · 100% · of one corporate family	$1.1B
hdr, inc.hdr, inc. employee owners pac	$5,000	HDR, INCAI match · 100% · the same organization	—

By cycle

Cycle	Raised (FEC summary)	From committees	From contractor PACs
2026	$3.2M	$979.8K	$255.6K85 PACs · 26% of committee money
2024	$1.7M	$582.5K	$147.5K53 PACs · 25% of committee money
2022	$5.6M	$1.4M	$306K67 PACs · 22% of committee money

Raised is the FEC's cumulative summary of the candidacy; committee money counts each contribution reported, so the two cover slightly different dates.

Terms

Every term in the House or Senate, as published by the congress-legislators project.

Senate · OklahomaJan 3, 2023 – Mar 23, 2026
House · Oklahoma's 2nd districtJan 3, 2021 – Jan 3, 2023
House · Oklahoma's 2nd districtJan 3, 2019 – Jan 3, 2021
House · Oklahoma's 2nd districtJan 3, 2017 – Jan 3, 2019
House · Oklahoma's 2nd districtJan 6, 2015 – Jan 3, 2017
House · Oklahoma's 2nd districtJan 3, 2013 – Jan 3, 2015

Identifiers

The same member in other public records.

Sources and method

Every figure on this page traces to these records.

Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 6, 2026 · loaded Oct 6, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
Committees, candidates and committee contributions to candidates (Federal Election Commission)FEC bulk data: committee master, candidate master (candidates' names, no addresses), linkages, PAC summaries, all-candidates summaries and contributions from committees (no individual contributors) · data current to Oct 6, 2026 · loaded Oct 6, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 6, 2026 · loaded Oct 6, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)

Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.
Activity counts describe volume and attendance; they are not a measure of quality.
Money and votes are shown side by side; neither explains the other.