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

A phone app that Mike Waltz, President Donald Trump’s former national security adviser, apparently used to save his text ...

Senate Democrats predict that former National Security Adviser Mike Waltz will have a "brutal confirmation hearing" for his ...

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

Reports of Mike Waltz's exit as national security advisor focused on Signalgate, but President Donald Trump has nominated him ...

The former national security adviser is now leading the charge at the United Nations after his group chat disaster last month ...

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

NewsNation's Washington, D.C. correspondent Joe Khalil provides the latest on the surprise shuffle in President Trump's ...

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

President Trump removed Mike Waltz as national security adviser because the Floridian would be a “better UN ambassador,” Vice ...

WASHINGTON — President Trump announced a major shakeup in his national security team Thursday, tapping Mike Waltz to be his United Nations ambassador while Secretary of State Marco Rubio will ...