Dan Caldwell, a senior advisor to Defense Secretary Pete Hegseth, was escorted out of the Pentagon and placed on administrative leave Tuesday over an alleged unauthorized information leak, according to a Defense Department official.

Caldwell, known for his non-interventionist views, is under investigation as part of a broader Pentagon effort to crack down on leaks, which includes polygraph testing. Though details of the alleged disclosure remain unclear, his name surfaced in a leaked group chat linked to U.S. strikes on the Houthis.

The Pentagon has not confirmed whether Caldwell is tied to recent high-profile leaks, and the investigation is ongoing.