Watch: Rand Paul confronts Markwayne Mullin about past comments, says he's unrepentant

Sen. Rand Paul's questioning of Sen. Markwayne Mullin got personal during the Oklahoma senator's confirmation hearing to become the next Homeland Security secretary. Paul criticized Mullin for "sheer lack of any kind of self-awareness" and slammed him for past comments he made about a 2017 attack where Paul was seriously injured. Mullin accused Paul of "character assassination" against him.