A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials.

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

RONALD J. DEIBERT is Professor of Political Science and Director of the Citizen Lab at the University of Toronto Munk School ...

A leak of information on American military operations caused a major political incident in March 2025. The Security Think ...

The chat, in which Defense Secretary Pete Hegseth laid out plans for an upcoming military strike in Yemen, inadvertently ...

Rep. Adam Smith (D-Wash.) said Mike Waltz’s Senate confirmation hearing for the U.S. ambassador to the United Nations role ...

CBS News and Politico are reporting that both National Security Advisor Mike Waltz and his deputy, Alex Wong, will leave their posts in the Trump White House. Waltz has confirmed he created the ...

The reports come after controversy over a Signal chat Waltz created in March to discuss plans for a military strike on Yemen, ...

As sources on Thursday confirmed Mike Waltz’s exit from his post as national security adviser, the impact of the U.S. government group chat leaks known as Signalgate, continues to expand.

Mike Waltz's exit from the Trump administration comes on the heels of the Signal chat scandal. Here's what happened.

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

Donald Trump said, "I’m having a lot of fun, considering what I do. You know, what I do is such serious stuff.” ...