Nonpartisan civic infrastructure
AllCiv·Legis1
·

Markwayne Mullin

R
U.S. Senator · Oklahoma · 113th-119th, 12 years 10 months
Overview of the Representative's office, activities, and communications.

About

Mullin, Markwayne a Senator and a Representative from Oklahoma; born in Tulsa, Tulsa County, Okla., July 26, 1977; an enrolled member of the Cherokee Nation; graduated from Stillwell High School, Stillwell, Okla.; attended Missouri Valley College, Marshall, Mo., 1996; A.A.S., Oklahoma State University Institute of Technology, Okmulgee, Okla., 2010; business owner; plumber; rancher; elected as a Republican to the One Hundred Thirteenth and to the four succeeding Congresses (January 3, 2013-January 3, 2023); was not a candidate for reelection to the House of Representatives but was elected as a Republican to the United States Senate in a special election on November 8, 2022, to fill the vacancy caused by the resignation of James Inhofe, for the term ending January 3, 2027, and took the oath of office on January 3, 2023.

Official Biography · U.S. Congress.
Years served
12
Bills introduced
23
Enacted
0
Cosponsored
157

Performance & Participation

Votes CastBottom 25%
94% — Voted in null of null roll call votes this congress.
Avg 97% · Most: 100% · Least: 87%
Vote IndependenceMiddle 50%
0.7% — Voted against their own party majority 5 of 683 times.
Avg 2.8% · Most independent: 19.0% · Most party-line: 0.0%
Hern wins Mullin’s Oklahoma Senate seat
The Hill · Nov 4, 2026
Midterm Election Results: Oklahomans to decide on US Senate seat
KOCO 5 · Nov 3, 2026
Mullin slams Hillary Clinton for poll intimidation warning
The Hill · Nov 3, 2026
Teamsters Union Leader Sean O'Brien Endorses Sen. Ashley Moody Despite Past Dispute
Headtopics · Nov 2, 2026
Ilhan Omar Investigation Is Targeting Multiple People
Before It's News · Nov 1, 2026
Your actions
Is this you? Claim this page — free.
District
View Office Details →
2026 Campaign Finance
$4.8M
Raised
18%
Individual
23%
PAC
—
Small $
1,815
Donors
Individual 18%PAC 23%Other 59%
Top PAC Donors
NRSC$62K
ALABAMA FIRST PAC$10K
AMERICAN CRYSTAL SUGAR COMPANY POLITICAL ACTION COMMITTEE$10K
AMERICAN EXCELLENCE PAC$10K
ARKANSAS FOR LEADERSHIP POLITICAL ACTION COMMITTEE (ARKPAC)$10K
View All Campaigns →
Data sourced from official congressional records, CRS, and FEC filings. AllCiv Score methodology available at allciv.com/methodology.