Sen. Tammy Duckworth (D-IL) confirmed Sunday she would not support Mike Waltz in a Senate vote determining whether he will be ...

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

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

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

President Donald Trump announced that Mike Waltz had been ousted as national security advisor. He was previously caught up in ...

Donald Trump removed Mike Waltz from his post as national security adviser — marking the first significant personnel overhaul ...

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

Adviser Mike Waltz had been under intense scrutiny after he reportedly mistakenly added the magazine’s editor-in-chief to a ...

Mike Waltz faces scrutiny after a photo revealed his use of TM SGNL, a modified Signal app, raising security concerns due to ...

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

Bolton says Waltz’s UN nomination is a “soft landing” and expects tough questions on his handling of classified information.

President Donald Trump has nominated Mike Waltz to be the next U.S Ambassador to the United Nations just hours after firing ...