Please explain what his proper response should have been.
If he had any savvy, he would have said “That’s a very understandable question and something I’ve given a lot of thought to and...” then debunk her question and assumptions with some well thought-out responses. He could have used Free Republic to help him prep for his answers in advance if his advisors didn’t have them.
He looked like a fool while he was fumbling to try to compose himself.