John Ullyot, the former senior Pentagon spokesperson who was sidelined last month amid growing controversies at the Defense ...

Top Pentagon spokesman John Ullyot became the latest high-profile Department of Defense staffer to leave, weeks after he was ...

An image of the Signal app is shown on a mobile phone in San Francisco, March 18. LONDON — A magazine journalist's account of being added to a group chat of U.S. national security officials ...

Darin Selnick, US deputy chief of staff, faces suspension amid a probe into Pentagon leaks linked to a Signal group chat.

President Donald Trump's second administration has not been lacking in scandal. One of the largest incidents recently ...

The SignalGate scandal has shaken the Trump administration's national security leadership, with officials Dan Caldwell and Darin Selnick removed from the Pentagon amid an investigation into ...

Dan Caldwell previously worked for an Arizona congressman and was outspoken about the Phoenix VA hospital scandal a decade ...

A watchdog group has said the exchanges on the Signal app were federal records, and sued in an effort to preserve them.

A lawsuit over the Trump administration’s infamous Houthi Signal group chat has revealed what steps departments took to ...

A top adviser for Defense Secretary Pete Hegseth was abruptly placed on administrative leave after he was connected to an information leak at the Department of Defense, Reuters reported Tuesday. Dan ...

CEO Nicholas Thompson on the editorial independence that shaped the magazine’s blockbuster story—and the business risks of ...

Trump, speaking to NBC News by phone earlier Tuesday, stood by Waltz. Goldberg reported that he was added to the Signal chat after he received a request from a user identified as Waltz.