US President Donald Trump on Thursday fired Kristi Noem as head of the Department of Homeland Security, the agency responsible for carrying out his sweeping immigration crackdown.
Trump, in a post on Truth Social, said Markwayne Mullen, 48, a Republican senator from Oklahoma, would take over the powerful department on March 31.
According to multiple media reports, Trump was upset with Noem's handling of the recent large-scale operation against undocumented migrants in Minnesota, during which federal immigration agents shot dead two Americans.
Trump was also reportedly angered by Noem's testimony at a Senate hearing this week during which she said the president had personally approved a $220 million DHS advertising campaign in which she featured prominently.
Trump said Noem, 54, would become his special envoy for a new security initiative in the Western Hemisphere he called "The Shield of the Americas" that will be announced on Saturday.
"(Noem) has served us well, and has had numerous and spectacular results (especially on the Border!)," Trump said.
He described Mullin as a "MAGA Warrior" and said he will be a "spectacular Secretary of Homeland Security."
"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 said.
Mullin's nomination will be subject to confirmation by the Senate, where Republicans hold a majority.
Trump campaigned for the White House on a pledge to remove millions of undocumented migrants from the United States and DHS is the chief enforcer of his deportation policy.
Speaking to reporters, Mullin said his focus will be "to keep the homeland secure."
"I think there's opportunities to build off successes," he said. "And there's also opportunities to build off things that maybe didn't go quite as planned."
Noem, in a post on X, thanked Trump for her new special envoy position and cited what she called "historic accomplishments" at DHS.
"We delivered the MOST secure border in American history," she said, and "three million illegal aliens have left the US."
- 'Boondoggle' -
Democratic lawmakers welcomed Noem's departure.
"Kristi Noem was the face of an unpopular, illegal, and outright dangerous mass deportation campaign that claimed the lives of innocent Americans and terrorized many more," Senator Dick Durbin said. "Even the president finally conceded she was unfit for the job."
Senator Adam Schiff of California said Noem "should have been fired a long time ago."
"It is telling, at the same time distressing, that what seems to have gotten her fired was her PR campaign...this $220 million boondoggle, this waste of taxpayer resources that largely promoted Kristi Noem," Schiff said.
Noem came under bipartisan criticism at Tuesday's Senate hearing.
Senator Thom Tillis, a Republican from North Carolina, called for Noem's resignation and said her leadership of DHS has been a "disaster."
Democrats repeatedly asked her to apologize for the deaths of the two Americans killed in Minnesota during protests against the immigration crackdown and for calling them "domestic terrorists."
Senator John Kennedy, a Republican from Louisiana and staunch Trump loyalist, questioned Noem about the $220 million spent by DHS on television advertising.
Noem said the advertisements had been "effective."
"They were effective in your name recognition," Kennedy shot back.
Noem is the first member of Trump's cabinet to be fired since he took office in January of last year. Trump's former national security adviser, Mike Waltz, was ousted last year over his involvement in a Signal chat in which sensitive information was shared with a journalist.
Noem's firing comes amid a partial shutdown at DHS.
Democrats oppose any new funding for DHS until major changes are implemented to how the Immigration and Customs Enforcement (ICE) agency conducts its operations.
They have demanded curtailed patrols, a ban on ICE agents wearing face masks and a requirement that they obtain a judicial warrant before entering private property.
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