The move by Trump comes after hours of speculation that Mike Waltz was about to lose his job as national security adviser.

President Donald Trump announced his choice to serve as ambassador to the U.N. after Rep. Elise Stefanik withdrew her ...

The Trump administration fired NSC advisor Mike Waltz and other staffers with the national security counci, Fox News Digital ...

Waltz initiated a Signal chat that included details of attacks against Houthis. Now he’s Trump’s pick to be the American ...

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

The president says Waltz, who started the leaked Signal chat, will be nominated as US ambassador to the UN and be temporarily ...

National Security Adviser Michael Waltz attends a meeting in the Oval Office of the White House in Washington, DC, on April 7 ...

Waltz had faced criticism for mistakenly adding a journalist to a chat group where sensitive military plans were discussed.

"I am pleased to announce that I will be nominating Mike Waltz to be the next United States Ambassador to the United Nations, ...

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

President Trump announced a major shakeup in his national security team Thursday, tapping Mike Waltz to be his United Nations ...

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