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

Former national security adviser Mike Waltz was photographed using the Signal app during a Cabinet meeting on Wednesday, a ...

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

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

WASHINGTON (AP) — White House national security adviser Mike Waltz is set to depart the administration, according to two ...

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

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

National Security Adviser Mike Waltz is leaving the Trump Administration after he added The Atlantic's Goldberg to a Signal ...

Secretary of Defense Pete Hegseth has faced allegations of sharing classified information on Signal, a commercially available ...