Sen. Thom Tillis is urging the President to oust Hegseth because of what he described as “inept management.”

The development follows Driscoll publicly breaking with Hegseth's move to force Gen. Randy George, the ousted Army chief of staff, to retire.

Driscoll has submitted his resignation to President Donald Trump amid growing tension between him and Defense Secretary Pete Hegseth, sources told ABC News.

Dan Driscoll leaves after 18-months in the job with White House bogged down in Iran conflict

The Army secretary told Trump about problems in the Army and his friction with Hegseth, then resigned.