The same man led up to a question about the Islamic State by saying the United States should outlaw Islam in order to deal with the problem.

“You know what, I’m not your candidate,” Graham said, cutting him off. “I don’t want you to vote for me. I couldn’t disagree with you more.”

Graham said that in order to deal with Islamic State, he would strengthen the military and put more troops on the ground in Iraq. Outlawing Islam is not the answer, he said.

“The bottom line is I’m not trying to please him,” Graham said after the event. “I’m not putting up with that. He’s got a right to say whatever he wants to say, but I have an obligation to the Republican Party, to the people of Iowa and the country as a whole to be firm on this. I’m not buying into that construct. That’s not the America that I want to lead.”