This is the first significant personnel overhaul of top White House aides, and the kind of shake-up President Trump has ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

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

Mike Waltz, Trump's national security advisor, is leaving the White House weeks after he accidentally added a journalist to a ...

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

National security adviser Mike Waltz is out, with Secretary of State Marco Rubio replacing him on an interim basis. President ...

National security adviser Mike Waltz is leaving his post and will become America’s ambassador to the United Nations, marking ...

The move comes after Waltz faced criticism for his role in the Signal group chat debacle that saw some of the country's top ...