- President Trump has replaced Kristi Noem as Homeland Security Secretary with Senator Markwayne Mullin.
- The leadership change follows controversial immigration enforcement tactics and high-profile operational errors in Minneapolis.
- The administration maintains that deportation and border goals will continue without interruption despite the shift.
(UNITED STATES) — President Donald Trump replaced Homeland Security Secretary Kristi Noem this week and tapped Senator Markwayne Mullin of Oklahoma to take over the Department of Homeland Security, a shake-up that followed weeks of controversy over immigration enforcement tactics, public messaging and management questions.
Trump announced on March 5, 2026, that he had moved Noem out of the top DHS job and reassigned her as “Special Envoy for The Shield of the Americas,” with Mullin set to step in pending Senate confirmation.
The personnel move sent an immediate signal about how the administration wants to sell its crackdown as it keeps pressing for mass deportation and strict border control, even as it faces intensifying criticism over risk, optics and accountability.
Reuters reported on March 6 that White House spokesperson Karoline Leavitt said Trump’s immigration goals remained unchanged and would continue “without interruption,” even after Noem’s dismissal.
Noem, sworn in on January 25, 2025, after Senate confirmation by a 59-34 vote, quickly became one of the most visible faces of the administration’s enforcement push, including a January 28, 2025, raid in New York City with ICE and other agencies.
Under her leadership, DHS sent thousands of immigration agents into Democratic-led cities including Los Angeles, Chicago, and Minneapolis in highly visible operations that drew national scrutiny.
Reuters reported that after federal agents shot and killed two U.S. citizens in Minneapolis, the administration moved toward a less public-facing and more “targeted” approach to immigration arrests.
That pivot, as described in Reuters reporting, suggested a tactical shift away from highly public raids after the Minneapolis incident involving civilian deaths, while leaving the administration’s underlying objectives intact.
AP reported that during recent congressional hearings, even some Republicans joined Democrats in criticizing Noem’s leadership, with retiring Senator Thom Tillis calling it a “disaster” and attacking both her handling of the immigration crackdown and her management of emergency response.
Advocacy groups, AP reported, viewed her departure as overdue and argued that her tenure treated immigrant families and workers as enforcement targets rather than as people.
Lawmakers also highlighted detention mistakes involving U.S. citizens, a line of criticism that sharpened questions about operational errors during an aggressive enforcement surge.
AP’s coverage of the fallout included imagery from a March 3 Senate Judiciary Committee hearing where three U.S. citizens who had been detained by ICE were introduced in the chamber as Noem looked on.
Another controversy centered on a $220 million border-security advertising campaign that prominently featured Noem.
Reuters reported that Trump said he had not signed off on the ads and was unaware of the campaign, which had already drawn bipartisan criticism during congressional hearings.
Noem’s tenure also drew scrutiny over a luxury plane purchase for deportation flights, part of broader procurement and management questions that added to pressure inside DHS and on Capitol Hill.
The administration’s enforcement decisions under Noem reached beyond arrests and operations, including rescinding protections for 600,000 Venezuelans and 532,000 from Cuba, Haiti, Nicaragua, and Venezuela.
NBC News reported on March 6, 2026, that Trump described Noem’s service as having “numerous and spectacular results, especially on the border,” even as she became the most divisive Cabinet member due to the controversies around enforcement and management.
Mullin aligns with Trump’s hardline border views, Reuters reported, and AP reported that the White House wants the Senate to move quickly on his confirmation.
The leadership switch also landed amid a funding fight that has intersected with enforcement choices and messaging.
Reuters reported that Democrats have blocked DHS funding since mid-February 2026 in an effort to pressure the administration to moderate its tactics, tightening the political constraints around how DHS carries out operations.
For allies of the administration, Mullin’s selection offered continuity on substance with a different messenger, a point reinforced by the White House insistence that the immigration campaign would continue “without interruption.”
For critics, Noem’s removal underscored the political cost of high-visibility deployments into Democratic-led cities and the backlash that followed operational mistakes, including the Minneapolis incident and detention errors involving U.S. citizens.
The central dispute that emerged during Noem’s tenure focused less on whether DHS would keep enforcing immigration law aggressively than on how much the administration would tolerate enforcement strategies that drew scrutiny for risk, optics and accountability.
Trump announced the replacement on March 5, 2026, setting up a confirmation test for Mullin as DHS contends with a funding blockade that has lasted since mid-February 2026.
Noem took office on January 25, 2025, after the 59-34 Senate vote, then helped launch early, high-profile actions such as the January 28, 2025, New York City raid and the moves affecting 600,000 Venezuelans and 532,000 from Cuba, Haiti, Nicaragua, and Venezuela.
As the administration prepared to hand DHS to Mullin at the end of the month, Tillis’ “disaster” assessment and Trump’s “numerous and spectacular results, especially on the border,” captured the widening split over the tactics used to pursue the same enforcement goals.
