The congressman said he's not ruling out another run but that he's "not ruling it in either," and that he'll make a decision "sometime next year."

He said he was "still in shock" that he'd lost.

"Even with the amount of money and the new district, I still thought we were going to win. It's 70 percent a new district, $7-plus million spent, and the anti-vote was just too much to overcome. We projected that the president would lose my district by 13 points. He lost by 17. That's my margin."