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Markwayne MullinRepublican Candidate for U.S. Senate in Oklahoma, 2026

R·RepublicanIncumbent

Last updated: March 4, 2026

Markwayne's Positions on Key Issues

Economy

High

Markwayne Mullin supports making President Trump's 2017 tax cuts permanent, stating that this initiative will deliver historic relief for American families and is imperative for Oklahoma. He also advocates for the development of data centers within the state, emphasizing their role in boosting local jobs and economic growth, citing Oklahoma's excess energy capacity as an advantage.

“In November, the American people voted overwhelmingly for a change in Washington. Every single county in Oklahoma, all 77 of them, voted for President Trump and his transformational America First agenda,” said Senator Mullin. “The One Big, Beautiful Bill will deliver historic relief for American families. It is imperative that we make President Trump’s 2017 tax cuts permanent. We will continue the fight and get the job done.” (Senator Markwayne Mullin, Mullin.senate.gov press release, "RELEASE: Let’s get this done.")

Immigration

High

Mullin voted against Department of Homeland Security and ICE funding in January 2026, citing abuses of power and constitutional rights violations by ICE agents. He advocates for immigration solutions that include strong border protections and no amnesty. He also co-sponsored the ICE Protection Act of 2026, which increases penalties for assaulting ICE officers, stating that ICE should continue its work to enforce law and order.

I am a hard NO on Department of Homeland Security and ICE funding today. - Markwayne Mullin, kevinmullin.house.gov, January 22, 2026

Healthcare

High

Senator Markwayne Mullin voted in favor of the Health Care Freedom for Patients Act, stating it would lower premiums and prioritize patients. He asserts that the Affordable Care Act (Obamacare) has made healthcare unaffordable and advocates for its repeal to create new, affordable solutions. Mullin also believes in offering choices within the healthcare system and has criticized Senator Bernie Sanders for the current state of healthcare costs, stating he does not want to socialize healthcare.

“Obamacare completely broke our health care system. Today, Senate Republicans offered a common-sense solution to get us back on track. The Health Care Freedom for Patients Actwould have lowered premiums, put money back in patients’ pockets, and ensured taxpayer dollars are not used for abortions or transgender surgeries,” said Senator Mullin. “Instead of delivering relief to the American people, the Democrats blocked our plan. They’d rather focus on extending Obamacare COVID-era subsidies for a broken program and send $26 billion to insurance companies. Insanity.” - Senator Markwayne Mullin, Mullin.senate.gov, 'RELEASE: Senator Mullin Votes to Make Health Care Affordable Again, Blasts Democrats for Prioritizing Insurance Companies Over Patients'

Climate & Energy

High

Markwayne Mullin has supported clean energy and climate initiatives, advocating for funding in the FY2026 appropriations package. He voted yes on the FY2026 NDAA, which included funds for power generation and mobile micro nuclear fission reactors. He also sought funding for marine carbon removal research, NOAA’s Digital Coast Program, and next-generation solar technology, emphasizing science-based solutions to combat climate change and strengthen global competitiveness. He also voted yes on critical appropriations bills securing funds for water infrastructure and advanced grid-scale energy storage.

“We must invest in innovative, science-based solutions to help combat the climate crisis, preserve our planet and strengthen America’s global competitiveness,” said Rep. Mullin. “My funding requests reflect the urgent need to modernize our energy systems, protect public health, and lead the world in clean technology development.” (Rep. Mullin, https://kevinmullin.house.gov/2025/06/05/rep-mullin-leads-clean-energy-and-climate-initiatives-in-the-fy26-appropriations-package/, 2025/06/05)

Abortion & Reproductive Rights

High

Markwayne Mullin opposes abortion, citing that life begins at conception and is a gift from God. He maintains a 100% voting record with National Right to Life and has voted against legislation designed to protect abortion access. He commits to always voting to protect the sanctity of life from conception to its natural end.

Always Pro-Life: As the father of five amazing children, I know that life is a gift from God and begins at the moment of conception. I will always vote to protect the sanctity of life – from conception to natural end. I am honored to have consistently maintained a 100% voting record with National Right to Life. - Markwayne Mullin, Ballotpedia

Foreign Policy

High

Senator Markwayne Mullin voted YES on the Fiscal Year 2026 National Defense Authorization Act (NDAA). He stated that the NDAA is crucial for reforming the Pentagon and equipping servicemembers with the necessary technology and weapons. Mullin also advocated for Oklahoma's military bases, securing $670.3 million for the state's installations, and supports military pay raises to honor their sacrifices and ensure readiness.

“The 2026 NDAA gives our troops the pay raise they deserve. Our service members and their families sacrifice a tremendous amount for our safety, they should be supported accordingly. We will also continue to set recruiting and retention records with strong investments in the next generation of warriors. I’m honored to continue to support our warfighters and the mission to defend this nation.” — Senator Markwayne Mullin, Mullin It Over, U.S. Senator Mullin Newsroom.

Education

High

Markwayne Mullin advocates for increased local control in public education. He supported legislation that freed Oklahoma from federal education standards and expresses strong opposition to Common Core, believing that federal government involvement in setting education standards is unnecessary. Mullin states that local school boards, parents, teachers, and administrators are best positioned to prioritize children's success.

I firmly believe in more local control for public schools. I helped pass legislation freeing Oklahoma from being forced to adhere to ineffective federal standards. We know that the federal government has no business creating big-government education standards, and I strongly oppose Common Core. Local school boards, parents, teachers and administrators have the best interests of our children at heart, and nobody wants to see their own children succeed more than the local community. - Markwayne Mullin, Ballotpedia

Gun Policy

High

Senator Markwayne Mullin co-introduced two bills with Rep. Dusty Johnson designed to expand firearm access for tribal citizens. One bill, the Tribal Firearm Access Act, aims to update federal law to recognize tribal government-issued identification for purchasing firearms. Mullin stated that this measure would ensure equal treatment for tribal members seeking to legally obtain firearms.

“For too long, Tribal members have been prohibited from using their government-issued Tribal identification to lawfully obtain firearms,” Mullin said (KOTA, February 27, 2026).

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