For weeks, UN officials have been on tenterhooks waiting to see who US President Donald Trump would appoint as his ambassador ...

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

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

Trump announced the move in a post on Truth Social.

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

US President Donald Trump has replaced Mike Waltz as national security adviser and said that he is nominating him to be the ...

A former official in Donald Trump's first administration who served as both national security adviser and ambassador to the ...

Trump confirms Mike Waltz will be replaced as national security adviser; to be appointed as US Ambassador to United Nations.

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

President Donald Trump has nominated former National Security Adviser Mike Waltz to serve as the US Ambassador to the United ...

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco ...