Mike Waltz, the departing national security adviser at the center of "Signalgate," is seen in new photos using the commercial messaging application during a Cabinet meeting held by President Donald ...

Former White House national security adviser Mike Waltz was seen using the encrypted messaging app Signal in photos taken during Wednesday's Cabinet meeting. Waltz was removed as national security ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...