United States Secretary of Homeland Security (DHS) Secretary Kristi Noem is leaving her post, and a Republican from Oklahoma will likely take her place.
Republican Sen. Markwayne Mullin, of Oklahoma, will replace Noem as DHS secretary, President Donald Trump announced on Truth Social on March 5.
Trump stated that the senator would take the helm on March 31, while Noem would serve as special envoy for “The Shield of the Americas” – a new security initiative to be announced on March 7.
Trump called Mullin a “MAGA Warrior.” The senator is a one-time MMA fighter who has served in the House since 2013 and in the Senate since 2023.
“Markwayne truly gets along well with people, and knows the Wisdom and Courage required to Advance our America First Agenda,” Trump posted to Truth Social. “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.”
Trump also pointed to Mullin’s membership in the Cherokee Nation, calling him a “fantastic advocate” of American Indian tribes.
“Markwayne will make a spectacular Secretary of Homeland Security,” Trump continued.
Meanwhile, Trump said Noem “has served us well,” calling her results at the Mexico border “spectacular.”
Noem thanked Trump on March 5 for appointing her to the new role at The Shield of the Americas, saying she anticipates working with Secretary of State Marco Rubio and Secretary of War Pete Hegseth. “I look forward to working with them closely to dismantle cartels that have poured drugs into our nation and killed our children and grandchildren,” Noem posted to X on March 5. “
“The Western Hemisphere is absolutely critical for U.S. security. In this new role, I will be able to build on the partnerships and national security expertise I forged over the last 13 months as Secretary of Homeland Security,” Noam continued.
Thank you @POTUS Trump for appointing me as the Special Envoy for the Shield of the Americas. @SecRubio and @SecWar are incredible leaders and I look forward to working with them closely to dismantle cartels that have poured drugs into our nation and killed our children and…
— Kristi Noem (@KristiNoem) March 5, 2026
Noem touted DHS’ accomplishments during her tenure – securing the border, getting 3 million illegal aliens out of the country, finding 145,000 children, and delivering FEMA relief 100% faster. She also said the agency “ushered in the golden age of travel, saved the American taxpayer $13 billion and revitalized the U.S. Coast Guard.”
