President Trump’s decision to remove Homeland Security Secretary Kristi Noem sent shockwaves through Washington on Thursday, March 5, 2026 — and Americans everywhere immediately started asking the same question: why was Kristi Noem fired from one of the most powerful positions in the federal government? The answer is a combination of explosive congressional testimony, a controversial ad campaign, deadly immigration enforcement incidents, and a growing pile of leadership failures that eventually became impossible for the White House to ignore.
If you’ve been following Noem’s turbulent tenure at DHS, share your thoughts in the comments below — this story is still developing.
Who Is Kristi Noem and How Did She Get Here?
Kristi Noem, the former governor of South Dakota, was tapped by President Trump to lead the Department of Homeland Security at the start of his second term. Her confirmation sailed through the Senate, and she quickly became the most visible face of the administration’s sweeping immigration crackdown. She oversaw a 250,000-person agency charged with one of the most ambitious deportation efforts in American history — a goal of removing one million people without legal status every year.
By the numbers, her tenure had some results. DHS deported approximately 605,000 people and maintained a historic high number of individuals in immigration detention. But behind those figures, serious problems were quietly stacking up — and it would only take a few bad weeks to bring them all crashing down at once.
The $220 Million Ad Campaign That Enraged Trump
The moment that appears to have sealed Noem’s fate came during her congressional testimony on Tuesday, March 3, 2026. When asked about a $220 million taxpayer-funded advertising campaign — which featured Noem prominently, including footage of her on horseback in front of Mount Rushmore — she told senators under oath that President Trump had personally approved the campaign before it launched.
Trump disputed that claim almost immediately. He told reporters he had never approved the campaign and knew nothing about it. A White House official was even blunter, stating flatly that the president did not sign off on the massive ad spend.
The campaign, which was awarded without competitive bidding to a media firm with close ties to Noem and DHS, had already drawn scrutiny on Capitol Hill. Republican Sen. John Kennedy of Louisiana pressed Noem on the spending during the hearings, noting that a fifth to a quarter of a billion dollars in taxpayer money had gone toward ads that were, in his words, primarily effective at boosting Noem’s own name recognition.
Trump was described as furious after learning what Noem had said about his alleged approval. That testimony, more than anything else, is what pushed him over the edge.
The Minneapolis Shootings Changed Everything
Long before the ad controversy exploded, Noem’s standing had taken a serious hit following the shooting deaths of two American citizens in Minneapolis in January 2026. Renee Good and Alex Pretti were both killed in separate incidents involving federal immigration enforcement agents.
The deaths triggered massive public backlash and calls for accountability. Rather than striking a cautious tone, Noem publicly labeled Alex Pretti a “domestic terrorist” before any formal investigation had concluded — a characterization that directly contradicted video footage circulating online at the time. That decision drew fierce criticism from both sides of the aisle.
Republicans who had voted to confirm Noem, including Sens. Thom Tillis of North Carolina and Lisa Murkowski of Alaska, called for her resignation in January. In the aftermath of the Minneapolis incidents, Trump quietly sidelined Noem by sending border czar Tom Homan to take over operations in Minnesota. The message was clear, even if no announcement was made at the time.
Congress Delivered the Final Blow
Noem testified before both the Senate and House Judiciary Committees in the first week of March, during what was also the third week of a DHS government shutdown. Approximately 100,000 agency employees had been furloughed, including workers in cybersecurity and disaster relief.
Her performance in those hearings was widely described as a disaster. Sen. Thom Tillis delivered one of the most stinging rebukes, telling Noem directly: “We’re an exceptional nation, and one of the reasons we’re exceptional is we expect exceptional leadership. And you have demonstrated anything but that.” He called her overall leadership of DHS a “disaster” and threatened to block Trump’s nominations until she answered his questions.
Trump reportedly watched the hearings closely and was incensed by what he saw. He had already been privately asking Republican senators for their input on Noem for months. After the hearings, that frustration boiled over. One GOP senator described the moment as “water boiling over the edge of the pot.”
A Long List of Additional Failures
The hearings and the ad controversy were flashpoints, but they were far from the only problems. Administration insiders pointed to a much longer list of grievances that had been building for months.
Noem was accused of mismanaging her staff and engaging in constant feuding with leaders at other agencies within DHS, including CBP and ICE. The DHS Inspector General sent a letter accusing her department of systematically blocking his office’s efforts to obtain data related to immigration enforcement operations.
Noem’s handling of disaster relief also drew criticism. She reportedly required her personal sign-off on any FEMA expenses exceeding $100,000, creating bottlenecks in disaster relief tied to Hurricane Helene. She also cycled through three acting FEMA administrators during her tenure.
Then there were the personal controversies. During the House hearings, Democratic members questioned Noem directly about a rumored personal relationship with Corey Lewandowski, a close DHS adviser and longtime Trump campaign figure. Lewandowski himself is now expected to leave DHS alongside Noem.
What Comes Next — Markwayne Mullin Takes Over
Trump announced Noem’s departure the same day on Truth Social, calling her successor a “MAGA Warrior.” Oklahoma Republican Sen. Markwayne Mullin, a former MMA fighter and ten-year House veteran, will take over as DHS Secretary effective March 31, 2026, pending Senate confirmation.
Mullin told reporters at the Capitol that he was honored by the nomination and ready to get to work. “We’re wanting to get the Department of Homeland Security working for the American people, and that’s going to be our focus,” he said.
As for Noem, Trump did not fully cast her aside. He reassigned her as Special Envoy for the Shield of the Americas, a new Western Hemisphere security initiative the administration plans to unveil in Doral, Florida. Noem, in her first public statement after the announcement, thanked Trump and touted her record at DHS.
She is the first Cabinet secretary to leave during Trump’s second term.
What do you think about Noem’s removal and what it means for the future of immigration enforcement? Drop your opinion in the comments and keep checking back for the latest updates.