Officials said Caldwell’s sudden downfall is tied to an ongoing investigation into unauthorized disclosure of department information.

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

One of U.S. Defense Secretary Pete Hegseth's leading advisers, Dan Caldwell, was escorted from the Pentagon on Tuesday after ...

Dan Caldwell, a senior advisor to Pete Hegseth, and Darin Selnick, the Pentagon's deputy chief of staff, have been put on ...

Dan Caldwell, a former top aide to Defense Secretary Pete Hegseth, claims he was targeted for his policy views.

Dan Caldwell, who was fired amid a leak investigation, said his unorthodox foreign policy views earned him enemies in.

A top advisor to Defense Secretary Pete Hegseth, Dan Caldwell, was escorted out of the Pentagon on Tuesday and placed on administrative leave, reportedly over a probe into leaks.

The Pentagon placed two top political appointees under administrative leave on Tuesday after a probe into potential leaks of ...

Dan Caldwell, a key adviser to Defense Secretary Pete Hegseth, was “escorted” out of the Pentagon Tuesday after being implicated during a leak investigation. Caldwell was put on administrative ...

(Patrick Semansky/AP) Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative leave and was escorted out of the Pentagon by security on Tuesday ...

WASHINGTON (AP) — Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative leave and was escorted out of the Pentagon by security on Tuesday ...