U.N. ambassador nominee Mike Waltz denied sharing sensitive information during a mobile app chat in March during a Senate Foreign Relations Committee hearing.

Waltz repeated past denials that he did not commit any wrongdoing when he inadvertently added a journalist to a Signal app group chat earlier this year.

Va., questioned Mike Waltz on Pentagon investigations that are ongoing related to the Signalgate group chat that was used to discuss strikes against Houthis, and Hegseth's role in the chat.

Former national security adviser Mike Waltz defended his use of the messaging app Signal during a confirmation hearing Tuesday during which lawmakers largely avoided the topic.

Waltz is a former Green Beret and Florida representative who resigned from Congress to join the Trump administration. He served as national security adviser for roughly three months. Trump reshuffled his team and named Secretary of State Marco Rubio acting national security adviser on May 1.