President Trump's former national security adviser was pressed on the inclusion of a journalist on a sensitive group chat ...

Waltz is a former Green Beret and Florida representative who resigned from Congress to join the Trump administration. He ...

Waltz was removed from his job as national security adviser after he accidentally added a journalist to his Signal chat about an attack on Houthis.

Mike Waltz is facing questioning from lawmakers for the first time since he was ousted as national security adviser.

Former national security adviser Mike Waltz, testified before the Senate Foreign Relations Committee in his bid to become U.N. ambassador, stood by the use of Signal in a chat that discussed sensitive ...

Mike Waltz, President Donald Trump’s nominee for U.S. ambassador to the United Nations, appeared before the Senate Foreign Relations Committee on Tuesday for his confirmation hearing.

Mike Waltz suggested the use of Signal was not only appropriate -- but actually prudent, given the guidance he was following.

Former national security adviser Mike Waltz defended his use of the messaging app Signal during a Tuesday confirmation hearing where lawmakers largely avoided the topic. The “Signalgate” scandal, in ...

The Signal episode — in which Waltz, Defense Secretary Pete Hegseth and other high-level officials faced intense criticism — didn’t come up at the hearing for more than an hour.