When a woman at a town hall in Arizona stated that Obama is going against the Constitution, McCain jumped to the President's defense. This led to quite a few boos after Senator McCain stated that Obama respects the Constitution. This was the quote in defense of the President:

"I just believe, my friends, that there is a fundamental difference in philosophy and about the role of government. That's why we have competition for public office and competition amongst parties, and competition about different ideas and visions for the future of America. I am convinced the President is absolutely sincere in his beliefs."

I think other politicians should take note of how McCain handled this situation. He even ended the comment telling people to be respectful of Obama.