President Donald Trump fired Department of Homeland Security Secretary Kristi Noem on Thursday and announced that Senator Markwayne Mullin of Oklahoma will take her place, effective March 31. Noem will be reassigned to a newly created role as Special Envoy for The Shield of the Americas, described as a new White House security initiative.
The move marks the first Cabinet-level ouster of Trump's current term and follows a punishing week for Noem on Capitol Hill, where a Senate panel grilled her over a $220 million taxpayer-funded ad campaign and where she told Senator John Kennedy under oath that she had Trump's approval for the project.
Trump, in an interview with Reuters, flatly contradicted her.
I never knew anything about it.
That single sentence effectively ended Noem's tenure. An unnamed insider told reporters that her testimony on Tuesday "gave him cover" to act immediately. Trump had batted down questions about firing Noem as recently as February. By March, she was out.
The reaction inside DHS and ICE headquarters was not subtle. One unnamed DHS source described the mood plainly:
Everyone is happy, lots of smiles.
An ICE official painted an even more vivid picture:
Crowds are celebrating. Lots of phone calls. Texts. People stopping by to celebrate.
Another DHS source offered a more measured but equally telling assessment:
Morale had taken a hit. There's a feeling among a lot of folks here that the department can finally reset and refocus on operations instead of internal turmoil.
When the rank and file of a federal agency celebrate their boss's departure in real time, the personnel problem is not a secret. It was an open wound.
Noem's troubles were not limited to the ad campaign, the Daily Mail reported. Her tenure was marked by a series of compounding problems:
Noem told lawmakers on Tuesday that the $220 million contract followed "a competitive process" and was "all done correctly, all done legally." That defense collapsed within 48 hours when the President publicly denied any knowledge of it. Testifying under oath that you had presidential approval for a quarter-billion-dollar spending project, only to have the President deny it on the record, is not a survivable event in any administration.
White House Chief of Staff Susie Wiles had reportedly long had enough of Noem's theatrics. The Capitol Hill debacle simply accelerated an outcome that many inside the building considered inevitable.
Trump announced the pick on Truth Social, lauding Mullin for his Native American roots and framing the selection in characteristically confident terms:
I am pleased to announce that the Highly Respected United States Senator from the Great State of Oklahoma, Markwayne Mullin, will become the United States Secretary of Homeland Security (DHS), effective March 31, 2026.
Mullin himself appeared genuinely caught off guard. He told reporters he hadn't spoken with the President all week and later said he found out about the appointment right before Trump published the statement. When pressed on the nomination earlier, Mullin was characteristically blunt:
I'm actually absolutely not dealing with hypotheticals.
That kind of directness may serve him well at a department that, by multiple accounts, is starving for steady leadership. One source noted the political calculus behind the pick: "They went to the reddest state in the union to replace her." The implication is clear. Oklahoma's Republican governor will appoint Mullin's Senate replacement, meaning no net loss for the GOP caucus.
Sources indicated that Trump would have likely elevated Tom Homan, but doubts persisted about whether Homan could secure the 60 votes necessary for confirmation. Mullin, as a sitting senator, carries a built-in advantage with his colleagues. The early signs support that theory.
Senator Lindsey Graham moved quickly to endorse the pick:
President Trump could not have chosen a better candidate to be Secretary of the Department of Homeland Security than Senator Markwayne Mullin.
Graham added that Mullin is "one of the most knowledgeable people I know regarding how to protect America" and expressed hope for an overwhelmingly bipartisan confirmation vote.
More notable was the support from across the aisle. Democratic Senator John Fetterman posted on X:
I'm not sure how many fellow Democrats will vote to support our colleague [Senator Mullin] as the next DHS Secretary, but I am AYE.
Fetterman's willingness to break ranks on a DHS nomination signals that Mullin's confirmation may be smoother than the usual partisan gauntlet. Personal relationships in the Senate still count for something, and Mullin has clearly built enough of them to draw Democratic votes on one of the most politically charged Cabinet positions in government.
The incoming secretary faces a department under extraordinary strain. The vast majority of DHS remains shuttered due to a lapse in congressional funding. One source described the situation starkly: "This is super high-risk. The department is shut down."
Lewandowski, Noem's top advisor, is widely expected to leave. One unnamed source said simply: "He will go because he knows Mullin will toss him." The cleanup extends beyond one person, but Lewandowski's departure would represent a symbolic break from the dysfunction that defined Noem's leadership.
Another source, less charitable about the outgoing secretary, summed up Trump's announcement this way: "He just kicked the teeth out of her." The reassignment to a newly created envoy role softens the optics, but no one inside the building is confused about what happened. This was a firing.
Mullin inherits a broken department, a funding crisis, and the operational demands of the administration's border enforcement agenda. One source noted he "looks good on television," but the job ahead requires more than that. It requires someone who can rebuild internal trust, manage a sprawling bureaucracy, and execute the mission without becoming the story.
Noem made herself the story at every turn. Mullin's first test is whether he can resist that temptation and let the work speak instead.
