WASHINGTON (AP) — Senators demanded answers on Tuesday from senior military leaders on why an Air Force commander dismissed charges against a lieutenant colonel after he was convicted of sexual assault.

“Do you really think that after a jury has found someone guilty, and dismissed someone from the military for sexual assault, that one person, over the advice of their legal counselor, should be able to say, ‘Never mind’?” Sen. Claire McCaskill, D-Mo., asked Marine Corps Gen. James Mattis, the top officer at U.S. Central Command, at a Senate hearing.