Photo of Markwayne Mullin
R United States Senate · Oklahoma

Sen. Markwayne Mullin

Compare
Total votes
1,513
all sessions
Attendance
96%
53 missed
Lower than 77% of chamber peers
With party
94%
of cast votes
Near the chamber average
Bipartisan score
3%
crosses aisle rarely
Lower than 76% of chamber peers
Sponsored
807
bills & resolutions
Lower than 93% of chamber peers
Committees
0
assignments
807 bills and resolutions

Sponsored bills

Total
807
Primary
70
Co-sponsor
737
This page
807
matching current filters
Primary S 996
In committee · United States Senate · Lead sponsor
Preserving Choice in Vehicle Purchases Act of 2025

Maddy summaryThis bill amends the Clean Air Act to prevent states from imposing standards that limit the sale or use of new internal combustion engine vehicles. It adds a new requirement that state standards must not directly or indirectly restrict such vehicles, and it prohibits the EPA from considering pre-2025 state standards as valid under existing waivers. The bill also requires the EPA to revoke certain existing waivers granted between January 2022 and the bill's enactment date if those waivers don't comply with the new standard. This directly affects states with their own vehicle emission rules (like California's ZEV program), limiting their ability to regulate internal combustion engine vehicles through EPA-approved standards.

In committee Mar 12, 2025 0 co-sponsors
Primary S 1007
In committee · United States Senate · Lead sponsor
9–8–8 Lifeline Cybersecurity Responsibility Act

Maddy summaryThis bill strengthens cybersecurity protections for the 9-8-8 National Suicide Prevention Lifeline program. It requires the program’s network administrator (receiving federal funding) and participating local crisis centers to report cybersecurity vulnerabilities or incidents within 24 hours. The program must coordinate with the Department of Health and Human Services’ Chief Information Security Officer to eliminate vulnerabilities. Additionally, the bill mandates a study by the Comptroller General on the hotline’s cybersecurity risks, to be completed within 180 days of enactment.

In committee Mar 12, 2025 0 co-sponsors
Primary S 932
In committee · United States Senate · Lead sponsor
Give Kids a Chance Act of 2025

Maddy summaryThe Give Kids a Chance Act of 2025 modifies FDA regulations to improve pediatric cancer drug development and extends incentives for rare pediatric disease treatments. It requires drug developers seeking approval for molecularly targeted cancer drugs to include pediatric-focused studies (e.g., dosing, safety) for specific cancer types, with new FDA guidance due within 12 months. The bill also extends the rare pediatric disease priority review voucher program through 2029 and mandates a GAO study to evaluate how effectively these vouchers spur development of treatments for rare pediatric diseases, reporting findings by 2034. This directly affects pharmaceutical companies developing cancer drugs and the FDA’s approval process, aiming to accelerate treatments for children with cancer and rare diseases.

In committee Mar 11, 2025 0 co-sponsors
Co-sponsor S 478
In committee · United States Senate · Co-sponsor
Veterans 2nd Amendment Protection Act of 2025

Veterans 2nd Amendment Protection Act of 2025 This bill prohibits the Department of Veterans Affairs (VA) from transmitting certain information to the National Instant Criminal Background Check System (NICS) utilized by licensed importers or dealers of firearms. Specifically, the bill prohibits the VA from transmitting personally identifying information of a veteran or a beneficiary to the NICS solely on the basis that such veteran or beneficiary has an appointed fiduciary to manage their benefits, unless there is an order or finding of a judicial authority that such veteran or beneficiary is a danger to themselves or others.

In committee Mar 11, 2025 1 co-sponsor
Co-sponsor SRES 115
Passed · United States Senate · Co-sponsor
A resolution relating to the death of the Honorable David Lyle Boren, former Senator for the State of Oklahoma.

Maddy summarySRES 115 is a commemorative resolution honoring the late Senator David Lyle Boren of Oklahoma, who died on February 20, 2025, at age 83. The resolution expresses the Senate's profound sorrow over his passing, details his career as Oklahoma's youngest governor (1974), U.S. Senator (1979-1994), and University of Oklahoma president (1994-2018), and directs the Senate to adjourn in his memory while sending a copy of the resolution to his family. It does not create new laws or policies but formally commemorates his legacy.

Passed Mar 5, 2025 1 co-sponsor
Co-sponsor SCONRES 8
In committee · United States Senate · Co-sponsor
A concurrent resolution supporting the Local Radio Freedom Act.

Maddy summarySCONRES 8 is a Senate concurrent resolution supporting the Local Radio Freedom Act. It urges Congress not to impose a new fee or charge on local radio stations for playing music over the air, or on businesses like bars and restaurants that play radio broadcasts publicly. The resolution argues that such a fee would disrupt the current system where radio stations provide free promotional support to the music industry and essential local services like emergency weather updates. It claims the existing model has fostered a thriving music and broadcasting sector without harming small businesses or consumers. This resolution does not create law but expresses congressional support for maintaining the current fee-free system.

In committee Mar 3, 2025 1 co-sponsor
Co-sponsor S 9
Introduced · United States Senate · Co-sponsor
Protection of Women and Girls in Sports Act of 2025

Maddy summaryThis bill amends federal education law to prohibit federally funded athletic programs from allowing individuals assigned male at birth to participate in sports designated for women or girls. It defines "sex" for this purpose as biological sex at birth, based on reproductive anatomy and genetics. The law directly affects schools, colleges, and sports organizations receiving federal funding. Violations would constitute a breach of Title IX, requiring programs to exclude individuals whose sex is male from women's or girls' athletic teams.

Introduced Mar 3, 2025 1 co-sponsor
Co-sponsor SJRES 12
died · United States Senate · Co-sponsor
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 "Waste Emissions Charge for Petroleum and Natural Gas Systems: Procedures for Facilitating Compliance, Including Netting and Exemptions".

Maddy summaryThis joint resolution (SJRES 12) seeks to block an Environmental Protection Agency (EPA) rule that established procedures for a "Waste Emissions Charge" affecting petroleum and natural gas systems. Specifically, it targets the EPA's November 2024 rule (89 Fed. Reg. 91094) which outlined compliance methods like netting and exemptions for emissions charges. If passed, the resolution would formally disapprove the rule under federal law (Chapter 8 of Title 5, U.S. Code), preventing it from taking effect. The bill directly affects the oil and gas industry by removing a specific regulatory framework for emissions reporting and fees. This is a procedural disapproval measure, not a new policy.

died Feb 27, 2025 1 co-sponsor
Co-sponsor SRES 89
Passed · United States Senate · Co-sponsor
A resolution expressing support for the designation of February 15 through February 22, 2025, as "National FFA Week", recognizing the important role of the National FFA Organization in developing the next generation of leaders who will change the world, and celebrating the 90th anniversary of New Farmers of America and the 75th anniversary of the Future Farmers of America Federal charter.

Maddy summarySRES 89 is a symbolic Senate resolution designating February 15-22, 2025, as "National FFA Week." It recognizes the National FFA Organization’s role in developing student leadership through agricultural education and celebrates two milestones: the 90th anniversary of New Farmers of America (a historically Black agricultural youth group) and the 75th anniversary of the Federal charter for Future Farmers of America (signed by President Truman in 1950). The resolution does not create new laws or obligations but formally expresses congressional support for these observances. It affects no specific group or policy, serving solely as a ceremonial acknowledgment.

Passed Feb 21, 2025 1 co-sponsor
Co-sponsor S 615
In committee · United States Senate · Co-sponsor
Chemical Tax Repeal Act

Maddy summaryS 615, the Chemical Tax Repeal Act, repeals excise taxes on specific chemicals and substances currently levied under the Internal Revenue Code. It removes Subchapters B and C of Chapter 38 (which governed these taxes) from the tax code, directly affecting chemical manufacturers and distributors who paid these taxes. The repeal takes effect January 1, 2025, eliminating these specific tax obligations for affected businesses.

In committee Feb 18, 2025 1 co-sponsor
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