"Kevin now, after many years in Government, wants to spend more time with his family and go to the private sector", Trump tweeted shortly before taking the stage at a rally in Lake Charles, La.
"Kevin McAleenan has done an outstanding job as Acting Secretary of Homeland Security".
In a statement, McAleenan thanked the president "for the opportunity to serve alongside the men and women of the Department of Homeland Security", adding that the department has "made tremendous progress mitigating the border security and humanitarian crisis we faced this year".
He replaced former DHS Secretary Kirsten Nielsen, becoming the fourth acting or confirmed DHS chief under President Trump, The Washington Examiner reported.
McAleenan took over for Kirstjen Nielsen in April 2019.
McAleenan had been frustrated with a cadre of Trump's appointments to senior immigration roles and recently told The Washington Post that he was struggling to control his department.
"The DHS secretary should be somebody who is completely part of the team, and while McAleenan is not some guerrilla fighter of the resistance, he's not really totally on board the Trump train", he said. In a letter to Congress obtained by ABC News expressing "enthusiastic support" for McAleenan's nomination to lead U.S. Customs and Border Protection, officials from both the George W. Bush and Barack Obama administrations called McAleenan "supremely qualified". "That's uncomfortable, as the accountable, senior figure".
Shepard Smith is leaving Fox News
In an interview with Time magazine in March 2018, Smith said that "they don't really have any rules on the opinion side. Smith was known for pointing out the foibles of the Trump administration in a way that often angered the president.
Toyota's New Hydrogen Car Takes On Tesla
The Mirai concept hints at a sleeker, more aerodynamic design, and it boasts a more rigid chassis and rear-wheel drive to boot. A big 12.3-inch main display sits proud atop the dash, flanking a large digital instrument display behind the steering wheel.