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 ...

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

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