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.

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

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

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

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 ...

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