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

After Michael Waltz, the national security adviser, inadvertently included The Atlantic ’s editor in chief in a group chat ...

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

WASHINGTON - U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of ...

Waltz has been on shaky ground with Trump after he inadvertently added a journalist to a private chat on the messaging app ...