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

"I think it will be a brutal confirmation hearing," Sen. Mark Warner said of Mike Waltz. "I think he's going to have tough ...

President Trump said Rubio will be acting National Security Adviser as he nominates Waltz to be the United States' ambassador ...

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

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

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

Trump said that Secretary of State Marco Rubio would serve as interim national security advisor until a permanent replacement ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

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

Mike Waltz was removed as Trump's national security adviser and faces Senate confirmation as the new nominee to be ambassador to the U.N.

The Washington Post reported that Donald Trump soured on Waltz over Waltz's support for an Israeli attack on Iran.