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

CBS News also reported that Waltz's former deputy, Alex Wong, fired in the shakeup, remains at the National Security Council.

Reports say President Donald Trump will nominate National Security adviser Mike Waltz to become the nation's ambassador to ...

Mike Waltz, the national security adviser for President Donald Trump, is seen in photos using Signal during a Cabinet meeting ...

White House shakeup: Mike Waltz leaves national security role, nominated as UN ambassador Louis Serbeck, 54, died while being ...

Signalgate was the national security adviser’s most glaring mistake. But his problems ran deeper. After Michael Waltz, the ...

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

Fired National Security Adviser Mike Waltz can‘t help but leak his Signal chats. Waltz, whose downfall was precipitated by ...

Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

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

Waltz came under scrutiny after revelations that he added a journalist to a private text chain about military operations.

White House national security adviser Mike Waltz is leaving the administration just weeks after it was revealed he added a ...