President Donald Trump has gone through his share of national security advisers. But he doesn't hold the record, yet.

President Donald Trump is replacing his National Security Adviser, Mike Waltz, and nominating him to be Ambassador to the ...

National security adviser Mike Waltz is leaving his White House post, although soon after reports about his departure were ...

President Donald Trump said Thursday that he’s naming Secretary of State Marco Rubio as acting national security adviser to ...

Mike Waltz is on his way out as President Trump’s national security adviser, a source familiar with the matter told The Post ...

Trump administration national security advisor Mike Waltz and other staffers are out at the National Security Council, sources confirmed to Fox News. Fox News confirmed Waltz and his deputy ...

Waltz has been on shaky ground and lost most of his influence in the West Wing after he inadvertently added a reporter to a ...

"The news that he's out is, to put it mildly, very disappointing," said Vic Baker, Volusia County Republican state committeeman.

President Trump is tapping national security adviser Mike Waltz to be his ambassador to the United Nations following reports ...

Mike Waltz will be nominated as U.S. ambassador to the U.N., while Secretary of State Marco Rubio will take on the added role ...

Waltz's exit comes just weeks after it was revealed he added a journalist to a Signal chat being used to discuss military ...

Waltz was at the center of the Signal chat controversy, in which a journalist was accidentally included in a discussion of ...