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

Defense Department guidance specifically prohibited employees from using Signal to transmit non-public information ...

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.

Former national security adviser Mike Waltz defended his use of the messaging app Signal during a confirmation hearing ...

US National Security Adviser Mike Waltz has taken responsibility for a group chat in which high-ranking officials planned military strikes in Yemen in the company of a journalist who was ...

Mike Waltz defiantly defended his use of a group chat to discuss military plans during a hearing to be US ambassador to the ...

It is unclear how Waltz would approach the job. Trump's first nominee, Rep. Elise Stefanik, had built a track record in Congress of criticizing the U.N. She vowed during her confirmation hearing in ...

As lawmakers consider the nomination of Mike Waltz to be the U.S. ambassador to the U.N., Waltz faced questions over his use ...

White House national security adviser Mike Waltz is set to depart the administration just weeks after it was revealed he added a journalist to a Signal chat being used to discuss military plans.

While US President Donald Trump has conceded that the Signal group chat scandal is an unfortunate “glitch” (quite the understatement, for sure), his national security adviser Mike Waltz has ...

Donald Trump has removed Mike Waltz as his National Security Advisor and nominated him instead for the role of the United States’s Ambassador to the United Nations. The announcement followed ...