Former Federal Prosecutor Elliot Williams talks with Pamela Brown about whether it’s appropriate for Trump administration ...

The version of Signal that recently ousted National Security Adviser MIke Waltz was caught checking during a Cabinet meeting ...

President Donald Trump said there is one lesson his administration has learnt from Signalgate. "I think we learned: Maybe don ...

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

President Donald Trump has named Mike Waltz as his next nominee for the U.S. ambassador to the UN after ousting him as his ...

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

The California Democrat’s request came the day after it was revealed that Defense Secretary Pete Hegseth discussed sensitive ...

The request by American Oversight came after revelations that Defense Secretary Pete Hegseth shared information on upcoming ...

President Donald Trump had a testy exchange with ABC News' Terry Moran about Secretary of Defense Pete Hegseth during an ...

Sen. Adam Schiff (D-Calif.) asked the National Archives and Records Administration (NARA) to investigate Trump administration ...

President Donald Trump's former national security adviser Mike Waltz was photographed using Signal during a Cabinet ... Rubio takes role for now White House Communications Director Steven Cheung ...

The move was intended to circumvent a lack of cellphone service in much of the Pentagon and enable easier communication between Hegseth and other Trump officials, said people familiar with the matter.