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

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

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

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

National security adviser Mike Waltz and his deputy, Alex Wong, will be leaving their posts, CBS News reported Thursday, ...

US President Donald Trump's national security adviser Mike Waltz is being forced out of his job in the first big shakeup of ...

An unofficial version of Signal, TeleMessage, used by Mike Waltz, Donald Trump's former National Security Adviser, has ...

Trump Removes Mike Waltz as NSC Adviser After War Plan Leak on Signal | Firstpost America | N18G In a major political shakeup, US President Donald Trump has removed Mike Waltz from his position as the ...

The images, captured by Reuters, show Mike Waltz, the former national security adviser, using the TM SGNL app, which allows ...

TeleMessage, an unofficial version of Signal, has suspended services after a security breach allegedly exposed user messages.

Researchers uncover security weaknesses in obscure TM SGNL app and indications that its Israeli maker was itself recently ...

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