Markwayne Mullin: The MMA Fighter Running Homeland Security

The Senate confirmed Markwayne Mullin as Secretary of Homeland Security on March 23, 2026, by a vote of 54 to 45. Two Democrats crossed party lines to vote yes. One Republican voted no. He replaces Kristi Noem, who was fired eighteen days earlier after what an administration official called a "culmination of leadership failures." Mullin takes over a department that is currently shut down as part of a broader funding dispute.

What follows is an assessment of the public record. What is documented. What is claimed but unverified. What circulates falsely.

The Record: What We Know

Markwayne Mullin was born on July 26, 1977, in Tulsa, Oklahoma, the youngest of seven children. He is an enrolled member of the Cherokee Nation, the first tribal citizen to serve in the United States Senate since Ben Nighthorse Campbell of Colorado retired in 2005 and the second Cherokee Nation member to hold a Senate seat after Robert L. Owen, who retired in 1925. As a child, Mullin wore leg braces for a clubfoot and had a speech impediment.

He attended Stilwell High School in eastern Oklahoma, where he wrestled, and went to Missouri Valley College on a wrestling scholarship. In 1998, he left college to take over his father's plumbing business after his father's health deteriorated. He received an associate degree in applied science from the Oklahoma State University Institute of Technology in 2010.

The Business

When Mullin assumed control of Mullin Plumbing in 1997, the company had six employees. By 2011, it had grown to over 300 employees and become the largest plumbing service company in Oklahoma, according to The Oklahoman. By 2013, he owned eight businesses. Congressional financial disclosures show he reported between $200,000 and $2 million in income from two family companies in 2012, and over $600,000 in 2013.

The House Office of Congressional Ethics opened an investigation into his business income while he served in Congress. The details of the referral are public record. Mullin sold his businesses to CenterOak Partners, a Dallas-based private equity firm, in December 2021.

The business record is verifiable and substantial. Mullin built a regional company from a small family operation into a multi-state enterprise. This is not disputed.

The Fighter

Mullin's mixed martial arts career is part of his political identity. His Senate biography lists a 5-0 professional record. Two independent MMA databases, Sherdog and Tapology, document three fights, all in the Xtreme Fighting League, a regional Oklahoma promotion, between November 2006 and 2007.

His documented debut came on November 11, 2006, against Bobby Kelley. Mullin won by rear-naked choke in 46 seconds. He fought Clinton Bonds twice after that, winning once by armbar submission and once by TKO. Three fights, three wins, all against regional opponents with limited records of their own.

The discrepancy between the claimed 5-0 and the documented 3-0 has not been publicly addressed by Mullin or his staff. His office and the White House did not respond to media requests for clarification. Separately, he was inducted into the Oklahoma Wrestling Hall of Fame in 2016 for his high school and collegiate wrestling career.

The Political Career

Mullin won Oklahoma's 2nd Congressional District in 2012 as a political outsider running on a central pledge: he would serve only three terms and go home. He signed a formal commitment with U.S. Term Limits during the campaign.

In 2018, he announced he would seek a fourth term. He told reporters he "didn't understand politics" when he made the pledge. U.S. Term Limits issued a statement saying Mullin broke both his promise to voters and his pledge to co-sponsor term limits legislation.

He won a special election for the Senate in June 2022 following the retirement of Jim Inhofe and was sworn in on January 3, 2023. In total, he served ten years in the House and three years in the Senate before his DHS nomination.

Throughout his congressional tenure, Mullin aligned consistently with hard-line immigration positions. He called for completing the border wall, reinstating the Remain in Mexico policy, and ending what he described as incentives for unauthorized crossings. He championed the immigration enforcement provisions of the One Big Beautiful Bill Act, which allocated $46.5 billion for border wall construction and funded up to 10,000 new ICE agents. Multiple outlets described him as one of Trump's closest Senate allies on immigration, and he served as an intermediary between the White House and congressional Republicans during border security negotiations.

Afghanistan: The Unauthorized Mission

In August 2021, during the U.S. withdrawal from Afghanistan, Mullin attempted to enter the country on his own initiative to rescue an American woman and her four children. The sequence of events, as reported by the Washington Post, CNN, and NBC News, is as follows.

Mullin first traveled to Greece and asked the Pentagon for permission to enter Kabul. The Pentagon denied his request. He then flew to Tajikistan and contacted the U.S. ambassador there, requesting help transporting a large amount of cash across the border into Afghanistan, saying he needed it to fund the rescue. Embassy officials refused, citing Tajikistan's currency restrictions. The Washington Post reported that Mullin "bullied" and "threatened" embassy staff over their refusal. For a period, the State Department could not confirm his location.

The trip came days after Representatives Peter Meijer and Seth Moulton faced bipartisan criticism for making an undisclosed visit to Kabul. House Speaker Nancy Pelosi had urged members not to travel to Afghanistan because such trips diverted military resources.

Mullin's defense has been consistent: he was trying to help Americans, and he would do it again. During his 2026 confirmation hearing, he largely declined to discuss the details, calling the information "classified."

The Confrontations

Two episodes from the public record define how Mullin handles conflict. Both are on video.

In November 2023, during a Senate Health, Education, Labor, and Pensions Committee hearing, Mullin challenged Teamsters president Sean O'Brien to a physical fight. Mullin read one of O'Brien's social media posts aloud, in which O'Brien had written "you know where to find me, anyplace, anytime, cowboy." Mullin then looked at O'Brien and said, "You want to run your mouth, we can be two consenting adults, and we can finish it here." He stood up and moved toward O'Brien before committee chairman Bernie Sanders intervened. "Stop it, hold it, no, no, sit down. You're a United States senator," Sanders said. The exchange continued for several minutes, with Mullin calling O'Brien a "thug."

In a reversal that received less attention, O'Brien endorsed Mullin's DHS nomination in March 2026.

The second episode came at Mullin's own DHS confirmation hearing on March 18, 2026. Senate Homeland Security Committee Chairman Rand Paul opened the hearing by confronting Mullin over past statements. Mullin had reportedly called Paul "a freaking snake" and suggested that Paul's 2017 assault by a neighbor, which left Paul with six broken ribs and ultimately cost him part of a lung, was "justified." Paul accused Mullin of having "low impulse control" and "anger issues."

Mullin responded by saying Paul "fights Republicans more than he works with them." Paul was the sole Republican to vote against Mullin's confirmation.

The "Smell of War" Question

On March 2, 2026, Mullin appeared on Fox News and said: "War is ugly, it smells bad, and if anybody's ever been there, and been able to smell the war that's happened around you and taste it and feel it in your nostrils and hear it, it's something that you'll never forget."

Mullin has no military service record. This is verified by Poynter and PolitiFact and is not disputed by his office.

The following day, on a podcast, he said he had done "special assignments" but "never wore the uniform or the flag." At his confirmation hearing, he declined to explain his overseas trips, calling them "classified." According to Axios, citing three people familiar with the matter, Mullin has privately hinted to colleagues that he was involved in private security work in Middle East war zones before running for Congress in 2012.

None of this has been verified. No documentation, no corroboration from named sources, no military or intelligence agency confirmation has entered the public record.

Representative Pat Ryan, a Democrat from New York who served two combat tours in Iraq as an Army intelligence officer, responded on social media: "Call of Duty doesn't count."

The Confirmation: 54-45

The final vote on March 23 broke down along predictable lines with two exceptions. Democrats John Fetterman of Pennsylvania and Martin Heinrich of New Mexico voted yes. Republican Rand Paul of Kentucky voted no. The confirmation came less than three weeks after Trump announced the nomination, an unusually fast timeline for a cabinet secretary.

Mullin inherits a department with 260,000 employees and a mandate that spans border security, immigration enforcement, cybersecurity, disaster response, the Secret Service, the Coast Guard, and the Transportation Security Administration. He has no prior executive branch experience. His management credential is the plumbing business.

At his confirmation hearing, he pledged to require ICE agents to obtain judicial warrants before entering private homes or businesses, with limited exceptions for active pursuits. Beyond immigration enforcement, his policy priorities for the department's other mission areas remain largely unspecified in public statements.

What We Don't Know

Several factual questions remain open.

The nature and extent of Mullin's claimed overseas activities before Congress are unverified. He has declined to provide details publicly and has not authorized the release of any supporting documentation.

His MMA record as listed on his Senate biography does not match independent databases. The discrepancy between five claimed fights and three documented fights is unexplained.

Whether his confrontational temperament, documented in at least two high-profile public incidents, will translate into effective leadership of a department that multiple Government Accountability Office reports have flagged for management challenges is untested.

What is documented is a trajectory from a small-town plumber's son with physical disabilities to the head of the third-largest federal department. The facts of that trajectory are not in dispute. The claims that surround it, from classified missions to unrecorded fights, remain exactly that.