The latest controversy comes as both Waltz and current Defense Secretary Pete Hegseth have made headlines for multiple Signal ...

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

There are some hurdles former National Security Advisor Mike Waltz must clear first before the United Nations ambassador job ...

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

President Donald Trump's outgoing national security adviser Mike Waltz was photographed using Signal on his phone during ...

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

Waltz’s problem was that in an administration of know-nothing America firsters, solicitous Trump sycophants, and national ...

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national ...

The app Waltz was using appeared to be “TM SGNL,” a modified version of Signal that retains and archives messages to comply ...

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

The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...