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

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 ...

A senior advisor to the US Secretary of Defense has become the focus of a controversial investigation involving the leak of ...

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 ...