Michael Gold

President-elect Donald J. Trump has moved quickly to stock the next administration with close allies. Roles including the secretaries of the Treasury, Commerce and Labor Departments have yet to be announced.

President-elect Donald J. Trump is expected to interview the top candidates at Mar-a-Lago. He told aides that he would stand by his choice for defense secretary after a sexual assault allegation jolted Mr. Trump’s transition team.

The president-elect said Senator Rubio would be “a strong advocate for our nation, a true friend to our allies and a fearless warrior who will never back down to our adversaries.”

Mr. Trump said Chris Wright would help “drive U.S. energy dominance.” He hasn’t yet announced the leaders of the Treasury, Commerce and Labor Departments, among other roles.

Ms. Leavitt, 27, who served as his campaign’s press secretary and worked in the White House during his first administration, will be the youngest person ever to assume the role.

After serving as the president-elect’s chief campaign spokesman, Mr. Cheung will return to the White House next year.

If confirmed, Mr. Huckabee, a former pastor who has never served as an overseas diplomat, would play a crucial role in helping Mr. Trump try to end the war in Gaza.

Though the former president has a history of making crass insults about opponents, the reposts signal his willingness to continue to shatter longstanding political norms.

The former president repeated his debunked claims of election fraud and speculated that there could be life on Mars in an interview aimed at young male voters.

The G.O.P. nominee repeated crude insults, and his supporters relished each moment. But the display could alienate swing voters.