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

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

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

The messaging app TeleMessage recently announced that it was suspending its services after being hacked, which caused concern ...

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

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

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

Reaction to Waltz’s ‘promotion,’ Rubio now ‘secretary of everything,’ Air Force nominee grilled, Trump wants Veterans Day ...

In a surprise move, National Security Adviser Mike Waltz will be leaving the Trump administration. Here's what people are ...

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

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

The images, captured by Reuters, show Mike Waltz, the former national security adviser, using the TM SGNL app, which allows ...