Reports say President Donald Trump will nominate National Security adviser Mike Waltz to become the nation's ambassador to the United Nations.

National security adviser Mike Waltz and his deputy, Alex Wong, will be leaving their posts in the Trump White House, according to multiple sources familiar with their departure.

U.S. President Donald Trump's national security adviser Mike Waltz is being forced out of his job, four people briefed on the matter said on Thursday, in the first major shakeup of Trump's inner circle since he took office in January.