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

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet ...

Waltz was at the center of the Signal chat controversy, in which a journalist was accidentally included in a discussion of ...

President Donald Trump's outgoing national security adviser Mike Waltz was photographed peaking at his phone under the table ...

A photo of Mike Waltz's phone appeared to show that he was using TeleMessage, an app that modifies Signal and other ...

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

Mike Waltz gave up one of the safer seats in Congress to serve as President Donald Trump’s national security adviser (Trump ...

Democrats are preparing to grill Mike Waltz about the Signal chat scandal when he appears at a confirmation hearing to be the ...

Waltz was among high-ranking members of the administration who accidentally shared plans about a forthcoming U.S. military ...

Mike Waltz, President Trump's national security advisor, is leaving the White House weeks after he accidentally added a ...

WASHINGTON (AP) — President Donald Trump said Thursday that he is nominating national security adviser Mike Waltz as United ...