President Trump has removed Kristi Noem as Department of Homeland Security (DHS) Secretary and named Sen. Markwayne Mullin (R-OK) as her replacement. “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. The current Secretary, Kristi Noem, who has served us well, and has had numerous and spectacular results (especially on the Border!), will be moving to be Special Envoy for The Shield of the Americas, our new Security Initiative in the Western Hemisphere we are announcing on Saturday in Doral, Florida. I thank Kristi for her service at ‘Homeland,'” Trump wrote on Truth Social. “Serving 10 years in the United States House of Representatives, and 3 in the Senate, Markwayne has done a tremendous job representing the wonderful People of Oklahoma, where I won all 77 out of 77 Counties — in 2016, 2020, and 2024! A MAGA Warrior, and former undefeated professional MMA fighter, Markwayne truly gets along well with people, and knows the Wisdom and Courage required to Advance our America First Agenda. As the only Native American in the Senate, Markwayne is a fantastic advocate for our incredible Tribal Communities. Markwayne will work tirelessly to Keep our Border Secure, Stop Migrant Crime, Murderers, and other Criminals from illegally entering our Country, End the Scourge of Illegal Drugs and, MAKE AMERICA SAFE AGAIN. Markwayne will make a spectacular Secretary of Homeland Security,” he added. Full post below: Daily Mail has more: Noem has been under heavy scrutiny for her alleged affair with her top advisor, Corey Lewandowski, and for an over $220 million ad blitz prominently featuring the secretary in an effort to recruit more officials to the Department of Homeland Security (DHS). Both Noem and Lewandowski have denied the affair. She testified that the multi-million dollar ad campaign was signed off on by the President when pressed by Congress under oath this week. However, reports indicate that her claim caught Trump by surprise. ‘I ​never knew anything about it,’ he told Reuters in an interview on Thursday. Watch Sen. John Kennedy (R-LA) question Noem about the advertisement below: Senator Kennedy just grilled Kristi Noem over $220 million in taxpayer-funded ads featuring herself The company that got most of the money was run by someone married to Noem's former spokesperson. Another firm was created 11 days before being selected. No competitive… pic.twitter.com/E3lylegRBO — Mario Nawfal (@MarioNawfal) March 4, 2026 Fox News shared further: Noem, 54, will likely be at least temporarily replaced by Deputy Secretary Troy Edgar, a Navy veteran and former mayor of Los Alamitos, California, in the line of succession for the agency. Noem’s tenure marked a distinct reversal of the open-border policies permitted by predecessor Alejandro Mayorkas during the Biden administration, and DHS has notched record drug interdictions totaling more than half a million pounds of illegal drugs in her first year. Her management of President Donald Trump’s mass deportation agenda has also led to more than 2 million reported self-deportations in 2025 and about 670,000 removals of illegal immigrants, a figure supporters have hailed as the most successful immigration enforcement operation in history. Her agency has also been unafraid to hit back at high-profile critics, including California Gov. Gavin Newsom; Rep. Eric Swalwell, D-Calif.; Minnesota Gov. Tim Walz; and 2026 midterm candidate David Trone of Maryland, who accused DHS of “executing people in the streets” as he filmed a protest ad outside a Williamsport compound recently purchased for use as a detention facility. Such criticisms of her mass deportation operations, particularly in Minneapolis, appeared to somewhat sour public sentiment on the administration’s handling of the immigration issue, as U.S. Border Patrol Cmdr. Gregory Bovino — a DHS subordinate — was replaced in the Twin Cities by Border Czar Tom Homan amid the firestorm.