More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what ...

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

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 ...

President Donald Trump announced that Mike Waltz had been ousted as national security advisor. He was previously caught up in ...

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

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

Now Waltz joins a list of discarded Trump national security advisers, alongside Flynn, H. R. McMaster, and John Bolton. That ...

As sources on Thursday confirmed Mike Waltz’s exit from his post as national security adviser, the impact of the U.S.

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