He was challenged by the crowd at first when they booed Obama. He handled it graciously and put the crowd back on his side. He then put the Obama experience in historic perspective. But what idiots! Why do those people still feel the need to boo Obama? Do they have no feelings of the man and his moment. When they shout U.S.A. U.S.A. U.S.A., I see them as hooligans who are trying to overshout the man as he delivers his speech, and my hope is, that when the historic record is told, the shouting in the background is part of that record of the day.