President Donald Trump has fired Department of Homeland Security Secretary Kristi Noem and announced Senator Markwayne Mullin will replace her, marking the first Cabinet-level termination of his second term.

The ‘last straw’ came when Noem told Senator John Kennedy under oath that she’d been given Trump’s approval for a $220 million taxpayer-funded campaign designed to boost her national profile. 

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.

Noem has also been under heavy scrutiny for her alleged affair with her top advisor, Corey Lewandowski. Both Noem and Lewandowski have denied the affair. 

Later on Thursday, Trump announced that Senator Markwayne Mullin of Oklahoma would be nominated to become the next DHS Secretary. Mullin’s office did not immediately respond to the Daily Mail’s request for comment. 

‘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 posted on Truth Social.

‘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.”’

Secretary of Homeland Security Kristi Noem films an ad at Mount Rushmore. The ad was a part of a $220 million campaign to recruit more DHS workers. Noem said Trump signed off on the expense, but the President refuted that

Trump announced that Senator Markwayne Mullin will be nominated to become the next DHS Secretary

The ‘last straw’ came when Noem told Senator John Kennedy under oath this week that she’d been given Trump’s approval for a $220 million taxpayer-funded campaign designed to boost her national profile

The President lauded Mullin for his Native American roots and claimed the Senator ‘will make a spectacular Secretary of Homeland Security.’

Officials within DHS and ICE are celebrating the news of Noem’s departure, sources have revealed to the Daily Mail.

One DHS source told the Daily Mail staff that in the department’s headquarters are cheering the news: ‘Everyone is happy, lots of smiles.’

‘Morale had taken a hit. There’s a feeling among a lot of folks here that the department can finally reset and refocus on operations instead of internal turmoil.’ 

There’s also an expectation that Corey Lewandowski will follow her out the door. ‘He will go because he knows Mullin will toss him.’ It is unclear if the advisor will depart DHS along with the secretary.

Another DHS insider said Trump had been preparing to fire her for days, but that her performance Tuesday ‘gave him cover’ to do so immediately.

Meanwhile, an ICE official at the department’s headquarters told Daily Mail, ‘Crowds are celebrating. Lots of phone calls. Texts. People stopping by to celebrate.’ 

A Senate panel grilled Noem about the ad campaign and the process through which the money was allocated for it. 

Mullin told reporters hours before Trump’s announcement that he had not talked to the president this week and he wouldn’t weigh in on ‘hypotheticals’ about him replacing Noem

Noem told lawmakers on Tuesday that there was ‘a competitive process’ to award the contract for the campaign and that it was ‘all done correctly, all done legally.’ 

One of the ads cut from the $220 million project showed Noem wearing a cowboy hat, riding a horse in front of Mt. Rushmore. 

Noem defenders were surprised by the heat she took from members of Congress during her appearance in the Senate this week.

They expected confrontation from Sen. Thom Tillis, who is a Trump critic on his way out after announcing he would not run for reelection. 

They did not expect confrontation from Republican Senator John Kennedy, who publicly berated Noem.

‘He just kicked the teeth out of her,’ one insider said. ‘That came out of nowhere.’

Insiders familiar with the situation heard that at the very least Corey Lewandowski would out by this weekend, but that could be moot if both of them would be out in weeks.

On paper, Lewandowski is a special government employee, so it’s easy to force him out on a timeline basis.

Trump had batted down questions about firing Noem in February before ousting her in March

Noem has been labeled as ‘ICE Barbie’ for myriad photoshoots showing Noem in full makeup, posing with guns and bulletproof vests

But there is no Kristi Noem without Corey, he singlehandedly lobbied Trump to get her the position and she would be without her biggest defender.

The White House grew tired of weekly stories of scandal and infighting, as Susie Wiles had long had enough of her theatrics.

‘It’s like who doesn’t she fight with,’ a source familiar told the Daily Mail

Trump chose Sen. Markwayne Mullin of Oklahoma partially to avoid a confrontational Senate confirmation process, one source told the Daily Mail.

He would have likely elevated Homan, but there was real doubt that Homan could get the 60 votes necessary to get confirmation.

Pressed on Thursday whether he is under consideration to lead DHS, Mullin dodged the question. 

‘Listen, I haven’t talked to the President all week, so I couldn’t even help you with that answer,’ he said. 

When asked if he is interested in the job, Mullin again shot down the inquiry. 

Sources within DHS and ICE celebrated Noem’s ouster on Thursday 

‘I’m actually absolutely not dealing with hypotheticals,’ he shot back.

Hours after his remarks, Trump announced Mullin would replace Noem. 

Mullin later told reporters he found out about his appointment right before the President published his statement.  

The ad campaign and the alleged affair are just the tip of the iceberg when it comes to Noem’s controversies. 

The DHS Secretary caught flak earlier this year when her agents shot and killed two Americans – Renee Good and Alex Pretti – during immigration operations in Minnesota.

She has also been slammed as ‘ICE Barbie’ for myriad photoshoots showing Noem in full makeup, posing with guns and bulletproof vests. 

Noem’s ouster marks the first Cabinet-level firing of Trump’s second term. 

The President previously removed Michael Waltz as national security advisor to ambassador to the UN, though that reassignment was not at the Cabinet level. 

DHS did not immediately respond to the Daily Mail’s request for comment. 

Trump’s announcement that Mullin will replace Noem immediately garnered support from lawmakers. 

‘I’m not sure how many fellow Democrats will vote to support our colleague [Senator Mullin] as the next DHS Secretary, but I am AYE,’ Democratic Senator John Fetterman posted on X.   

Republican Senator Lindsey Graham of South Carolina reacted: ‘President Trump could not have chosen a better candidate to be Secretary of the Department of Homeland Security than Senator Markwayne Mullin.’

‘He is one of the most knowledgeable people I know regarding how to protect America. Markwayne is an outstanding choice and I hope he gets the overwhelmingly bipartisan vote that he deserves.’