Trump fires Noem: Who will be the U.S.’s new secretary of homeland security?
Donald Trump has announced that Kristi Noem is to be replaced as head of the Department of Homeland Security.
Kristi Noem is to step down as head of the Department of Homeland Security (DHS). President Donald Trump announced the decision amid intense scrutiny surrounding the secretary, driven largely by the agency’s spending and pressure over the killings of two U.S. citizens by immigration officers.
Who is replacing Noem at the DHS?
The Republican president also named Noem’s 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,” 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 […]. 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.”
— Rapid Response 47 (@RapidResponse47) March 5, 2026
The president also announced that Noem will serve as special envoy for the “Shield of the Americas” summit, a new Western Hemisphere security initiative in which Trump has invited the leaders of several Latin American nations. The summit will be held in Doral, Florida, on Saturday, March 7.
White House Press Secretary Karoline Leavitt explained that the goal of the summit is to promote “freedom, security, and prosperity in our region.” She noted that the president will host the heads of state from Argentina, Bolivia, Chile, Costa Rica, the Dominican Republic, Ecuador, El Salvador, Honduras, Panama, Paraguay, and Trinidad and Tobago. Additional countries may join the summit.
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