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Who Is Running for Senate in Oklahoma in 2026?

Last updated: March 4, 2026

Markwayne Mullin

(Incumbent)
R·Republican

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.

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.

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.

Democratic Candidate

D · Democratic

No Democratic candidate has been confirmed for this race yet. Check back after the primary.

IssueMarkwayne Mullin
Economy

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.

High
Immigration

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.

High
Healthcare

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.

High
Climate & Energy

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.

High
Abortion & Reproductive Rights

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.

High
Foreign Policy

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.

High
Education

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.

High
Gun Policy

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.

High

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