The assassination of Benazir Bhutto in December was an "unfortunate event," says Black. "But his knowledge and ability to talk about it reemphasized that this is the guy who's ready to be Commander-in-Chief. And it helped us." As would, Black concedes with startling candor after we raise the issue, another terrorist attack on U.S. soil. "Certainly it would be a big advantage to him," says Black.

"They were inappropriate," Black told reporters at a fund-raising event in California. "I recognize that John McCain has devoted his entire life to protecting his country."

"It's not true," McCain said. "I've worked tirelessly since 9/11 to prevent another attack on the United States of America. My record is very clear."

McCain cited his work on the Senate Armed Services Committee and his role in creating the 9/11 Commission in describing his efforts to stop terrorist attacks on American soil.

"If he said that, and I do not know the context, I strenuously disagree," McCain said.