U.S. Senator Markwayne Mullin, President Donald Trump's nominee to be Homeland Security secretary, tesifies before a Senate Homeland Security and Governmental Affairs Committee confirmation hearing on Capitol Hill in Washington, D.C., U.S., March 18, 2026. / REUTERS/Evan Vucci

U.S. Senator Rand Paul, the Republican chairman of a Senate panel weighing the nomination of President Donald Trump's pick for homeland security, sharply criticized the nominee on March 18 over inflammatory remarks a month ago, saying he understood why a neighbor attacked Paul in 2017.

The nominee, Republican Senator Markwayne Mullin of Oklahoma, called Paul "a freaking snake" a month ago over political differences related to an agricultural bill. Weeks later, Trump nominated Mullin to replace embattled Homeland Security Secretary Kristi Noem.

The tense remarks at the start of the hearing suggested Mullin could face bumps on his path to likely confirmation in the Republican-controlled Senate. Democrats have blocked federal funding for the U.S. Department of Homeland Security since mid-February, saying they will not approve the money unless the Trump administration makes lasting changes to scale back aggressive immigration enforcement, complicating the nomination.

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Paul opened the hearing by stressing the importance of tamping down violent political rhetoric. He referenced comments in February by Mullin saying he understood why Paul's neighbor in Kentucky attacked him in a high-profile incident in 2017 that left him with broken ribs and a damaged lung.

"I think it's imperative now more than ever that the leaders in our country disavow violence and lead by example," Paul said, demanding Mullin explain his fitness to lead the 260,000-person department.

Mullin did not apologize but asked that Paul give him a chance to prove himself.

"I can set it aside," Mullin said to Paul. "If you're willing to set it aside, let me earn your respect. Let me earn the job. I won't fail you."

James Lankford, Oklahoma's other Republican senator, praised Mullin as a hands-on leader equipped to tackle DHS' wide-ranging mission, from border security to disaster response.

"I appreciate your willingness to be able to step up in a season where DHS needs a leader," Lankford said.

Senate Majority Leader John Thune told reporters he expected Mullin's nomination to be approved despite the friction with Paul.

IMMIGRATION CRACKDOWN IN SPOTLIGHT

Trump, a Republican, surged federal agents into U.S. cities beginning in mid-2025 to make immigration arrests, with major operations in Los Angeles, Chicago, and Minneapolis, where masked officers employing militaristic tactics led to legal challenges and public criticism.

After federal immigration officers shot and killed two U.S. citizens in Minneapolis in January—Renee Good and Alex Pretti—the Trump administration shifted its tone and said it would take a more targeted approach.

Amid mounting criticism from Republicans over the immigration crackdown and Noem's handling of DHS, Trump fired her earlier this month and announced he would nominate Mullin, a businessman who spent a decade in the U.S. House of Representatives before his election to the Senate for a term beginning in 2023.

Senator Gary Peters of Michigan, the committee's top Democrat, criticized Noem at the hearing for saying the U.S. citizens killed in Minneapolis had committed acts of domestic terrorism rather than calling for an investigation and warned Mullin that a DHS secretary needed to have the right temperament.

"It's not the role of the secretary to be a cable news commentator in the wake of a crisis," Peters said.

At the time of Pretti's shooting, Mullin similarly portrayed him as a threat despite video evidence that undercut that claim. He said Pretti was "a deranged individual" who had a loaded pistol and intended "to cause max damage" during an interview with Fox News on Jan. 24, the day Pretti was killed.

At the hearing, Mullin said he regretted those statements but declined to apologize.

Peters also grilled Mullin on travel to Azerbaijan and Georgia shown in FBI records but not disclosed to the committee.

Mullin said he was asked to train with "a very small contingency" as part of a classified government trip in 2016 but declined to provide details.

Mullin agreed to speak with the committee's top lawmakers after the hearing in a secure room for handling classified information.

LIKELY ROAD TO CONFIRMATION IN REPUBLICAN-CONTROLLED SENATE

The quickly assembled confirmation hearing before the U.S. Senate Homeland Security and Governmental Affairs Committee offered Mullin a chance to show how he would approach the job and to address lawmakers' concerns over Noem's management of the department.

Mullin's nomination must be approved by the Senate, where Republicans hold a 53-47 advantage over Democrats. First, he must be approved by the homeland committee, which has eight Republicans and seven Democrats. The committee is scheduled to vote on the nomination on March 19.

One Democrat, Senator John Fetterman of Pennsylvania, said last week that he would back Mullin's nomination, citing his immigration enforcement record. On March 18, Fetterman praised Mullin and said he would listen to his testimony "with an open mind."

As a member of the Cherokee Nation, Mullin would become the second Native American in U.S. history to serve as a cabinet member if confirmed.

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