At a rally in Minnesota on Friday, a woman told McCain: "I don't trust Obama. I have read about him and he's an Arab."

McCain shook his head and said, "No ma'am, no ma'am. He's a decent family man...[a] citizen that I just happen to have disagreements with on fundamental issues. That's what this campaign is all about."

One man at the rally said he was "scared of an Obama presidency." McCain later told the man he should not fear Obama.

"I want to be president of the United States, and I don't want Obama to be," he said. "But I have to tell you, I have to tell you, he is a decent person, and a person that you do not have to be scared as President of the United States."

McCain's response was met with boos from the crowd.