Live updates: Trump taps Waltz for UN ambassador post

President Trump announced on Thursday that he will nominate national security adviser Mike Waltz to serve as the next ambassador to the United Nations.

“From his time in uniform on the battlefield, in Congress and, as my National Security Advisor, Mike Waltz has worked hard to put our Nation’s Interests first,” he wrote Thursday afternoon on Truth Social. “I know he will do the same in his new role.”

Earlier on Thursday, multiple news outlets reported that Waltz would leave his role in the Trump administration.

In recent weeks, Waltz has come under fire by Democrats and Trump allies alike after inadvertently adding a Washington journalist to a Signal group chat where senior administration officials discussed a forthcoming attack on Yemen. The president defended Waltz, a former Florida lawmaker, after The Atlantic first reported about the chat’s existence in March, saying he learned “a lesson” and was “a good man.”

Trump on Thursday said that Secretary of State Marco Rubio will serve in Waltz’s place in the interim.

The shakeup comes as Trump wraps up a week of events marking a milestone of his second term with yet another packed schedule.

The president will deliver remarks at a National Day of Prayer event at 11 a.m. EDT at the White House and then will fly to Tuscaloosa, Ala., to address the class of 2025 at the University of Alabama at 8 p.m. EDT.

With a rally and media interviews — including a NewsNation town hall Wednesday night — Trump has celebrated his administration’s successes over its first 100 days. He’s held firm that his economic strategy, including stiff tariffs, is the right course for the nation, despite polling that shows a dip in his approval rating and rising concern among GOP lawmakers.

Congressional lawmakers wrap up their week Thursday, as they work furiously to get a reconciliation bill, “one big beautiful bill,” pulled together for a vote targeted for later this month.

Stay tuned here all day for updates.