Donald Trump removed Kristi Noem from her post as Secretary of Homeland Security on Thursday, March 5, via a post on Truth Social. The firing ends a brief, loud tenure defined by aggressive deportation tactics and a $220 million advertising bill that Noem claimed the President himself had cleared. Noem is the first cabinet-level official to be ousted in this term, following the earlier departure of national security adviser Mike Waltz in May.

Markwayne Mullin, a Republican Senator from Oklahoma, is the named successor.
He is scheduled to take over the department on March 31, pending a Senate vote.
The Department of Homeland Security remains in a state of budgetary paralysis since mid-February, as opposition lawmakers refuse to fund a machine they claim is broken.
The $220 Million Friction
The immediate trigger for the firing appears to be a massive public relations campaign funded by the DHS. Noem spent $220 million on ads designed to convince immigrants to leave the country voluntarily.

"It is both revealing and disturbing that what seems to have cost her her job was her PR campaign" rather than the actual conduct of the immigration police, noted observers of the internal friction.
During recent hearings before the Senate and the House, Noem testified that she had Trump's explicit "aval" (approval) for the spending. Sources indicate this public tethering of the President to the expensive, and perhaps redundant, campaign caused the final break in trust.
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Blood and Bureaucracy
Noem’s standing had already eroded following a January incident in Minneapolis. Two Americans, Renee Good and Alex Pretti, were shot and killed by agents from ICE (Immigration and Customs Enforcement).

| Incident Factor | Impact on Noem’s Tenure |
|---|---|
| Labeling | Called the victims "terrorists" before any investigation was completed. |
| FEMA | Faced heavy internal and external fire for mismanagement of federal disaster aid. |
| Budget | Presided over a department that ran out of operational cash due to political stalemate. |
| Optics | Earned the nickname "Homeland Barbie" for what critics called a "taste for the limelight" over policy. |
The Enforcement Vacuum
The department Noem leaves behind is currently immobile. Since February 15, the DHS has lacked a functional budget. Democrats have tied funding to a total overhaul of ICE and Border Patrol practices. Noem's departure suggests the administration may be attempting to swap a "publicity-heavy" leader for a "guerrier" (warrior) figure in Mullin to break the legislative logjam.
Background: From Dakota to the Cabinet
Kristi Noem, 54, was previously the Governor of South Dakota. She rose to national prominence as a loyalist who mirrored the President's rhetoric on border security and immigration raids.
She married Bryon Noem at age 20 and spent years in the political machinery of Watertown.
Her tenure at DHS was characterized by muscular enforcement and a refusal to deviate from the "MAGA" line, even when federal agents were involved in domestic shootings.
Her exit follows the "Signal" scandal of Mike Waltz, marking a pattern of early turnover in the high-tier advisory circle.
Noem signaled her compliance with the exit on the platform X, thanking the President for the opportunity even as her successor prepared to take the "ring."
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