Colin Carroll, a former top Pentagon official, said in an interview over the weekend that he's "not sure" if Department of Defense Secretary Pete Hegseth is OK. Carroll served as the chief of staff to the deputy secretary of defense but was fired this month amid an internal investigation into Pentagon leaks.

When President Donald Trump chose Pete Hegseth for Defense secretary, incoming officials knew they’d need to surround the inexperienced Fox News host with accomplished staff who could handle the nation’s largest bureaucracy.