Corey Lewandowski is expected to depart the Department of Homeland Security after President Trump fired Secretary Kristi Noem on Thursday, closing one of the more unusual chapters in the department's history. Lewandowski served as Noem's de facto chief of staff, tightly controlled department operations, and built a reputation for abruptly firing staff and instilling fear among fellow Trump aides.

His departure clears the path for Senator Markwayne Mullin, Trump's nominee to lead the department. A White House official assumes Lewandowski will be swiftly out of power as soon as Mullin assumes command later this month.

An administration official did not mince words about the transition:

The end of Corey Lewandowski's reign represents a return to responsible and accountable governance.

The same official added that "the nation welcomes Senator Mullin's nomination." When a separate White House official was asked whether Lewandowski might land elsewhere in the administration, the answer was blunt: "Don't know who would want him."

The unpaid volunteer who ran the building

Lewandowski's position at DHS was structurally odd from the start. He held the title of unpaid special government employee, a designation that allowed him to work 130 days within a 365-day period and did not require him to submit financial disclosure forms. He downplayed his influence at the department, calling himself merely an "unpaid volunteer" for Trump's White House.

The reality inside the building told a different story. Lewandowski controlled operations, made personnel decisions, and, according to reporting, had fired a Coast Guard pilot for leaving his lover's blanket on a plane. He reinstated the pilot when there was no one to fly them home.

When a cutoff on his working days approached last year, Lewandowski evaded it by arriving at DHS headquarters in Noem's motorcade. That is the kind of detail that tells you everything about how the arrangement actually functioned. Whatever his title said, Lewandowski operated as the most powerful person at DHS who wasn't the secretary. And depending on who you asked, the distinction was thin.

Noem's final days under the spotlight

Noem's firing came after a turbulent week of congressional testimony. She testified to a Senate committee on Tuesday and faced an outcry from lawmakers when she told them Lewandowski did not approve contracts, despite what was described as substantial evidence that he had.

On Wednesday, Noem was pressed by Democrats twice under oath on whether she was having an affair with Lewandowski. She trashed the questions but didn't outright deny a sexual relationship. The two have traveled extensively together on official business, visiting Argentina, Bahrain, Costa Rica, Guatemala, Poland, and Italy. Lewandowski, who has been married to Alison Hardy since 2005, is believed to be living with Noem. Sources told The Post in 2023 that Noem's husband, Bryon Noem, had moved out of the governor's mansion roughly two years prior.

None of this is the kind of story any administration wants dominating a news cycle. Whatever one thinks of the personal allegations, the operational picture at DHS had become untenable. A department responsible for border security and immigration enforcement cannot function when congressional testimony about contract approvals collapses under scrutiny and the secretary's chief lieutenant technically doesn't work there.

Lewandowski plays it cool

For his part, Lewandowski was careful not to get ahead of the situation. Asked about his future, he offered deference to the president:

I would never try and assume to get in the mind of President Trump. I think he has his reasons for everything he does, and we have seen enormous success from his leadership at the White House.

He said he hadn't decided on his next move and extended an olive branch to Mullin, saying he was "happy for Markwayne Mullin." On the day of Noem's firing, Lewandowski mentioned working with Secretary of War Pete Hegseth in Florida, while Noem was speaking at a conference in Nashville. Hegseth, for his part, called out Lewandowski's contributions.

Lewandowski has always been a survivor. He worked on Trump's 2016 presidential campaign before being fired as campaign manager that same year. Three years later, his longtime business associate Dave Bossie was scorched by Trump for "deceptive" fundraising practices. Through it all, Lewandowski kept finding his way back into the orbit.

What Mullin inherits

The more important story isn't who's leaving. It's what comes next.

DHS under Noem and Lewandowski became defined by internal drama rather than mission execution. The department exists to secure the homeland, enforce immigration law, and coordinate federal responses to threats. Every week spent answering questions about personal relationships and shadow staffing structures is a week not spent on those priorities.

Mullin brings a different profile: a sitting senator with confirmation relationships already built, a background that doesn't come loaded with tabloid baggage, and the institutional credibility to walk into the building and be taken seriously on day one. The administration clearly sees this as a reset, and the speed with which officials distanced themselves from Lewandowski suggests the White House views the DHS dysfunction as a closed chapter, not an ongoing liability.

Trump moved decisively. The department now gets a fresh start. Whether Mullin can rebuild internal morale and refocus the mission will determine if this episode becomes a footnote or a turning point. The machinery of border enforcement doesn't run on drama. It runs on leadership that shows up on the org chart.