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

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

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

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

President Trump recently discouraged the use of the Signal app after controversy over a group chat of administration ...

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

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

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

It was put best yesterday by Senate Minority Leader Chuck Schumer in talking about Donald Trump’s dismissal of National ...

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

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

After Michael Waltz, the national security adviser ... security team is based on interviews with 14 current and former White House officials and outside advisers, all of whom spoke on the ...