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

Robby Soave and Lindsey Granger react to an inside scoop on Mike Waltz's ouster as President Trump's national security ...

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 leaving his White House post, although soon after reports about his departure were ...

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 ...

President Donald Trump's outgoing national security adviser Mike Waltz was photographed using Signal on his phone during ...

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

Waltz's deputy, Alex Wong, who was also ousted this week, reportedly remains at the National Security Council.

The national security adviser infamously added The Atlantic's Jeffrey Goldberg to a Signal group chat discussing Yemen attack ...

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

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