He’s right, they can and might:

Committed Christians can be attracted to the Democratic side if the party’s presidential nominee projects an honest interest in tackling moral issues, candidate John Edwards said here Sunday.
Edwards pointed specifically to poverty and the fact that millions of people have no health care coverage.
“Those are things that Christians care about, that people of faith in general care about,” he said. “I think that Iowa caucusgoers and the faith community can spot a phony a mile away. They can tell, when they look at you and when they listen to you talk, whether you say what you really believe, whether it comes from within.”

Though if this is the criteria, I don’t think it will happen:

“If we have a candidate for president who’s direct and honest and truthful, who tells the truth about what’s happening – I promise you it will work,” he said.

Want proof? Hillary got a standing O at Saddle Back Church (Rick Warren’s church)!

Many evangelical Christians have taken issue with Hillary Clinton for promoting abortion rights, gay rights and teen condom use, but you wouldn’t have known it from the standing ovation that greeted her at Saddleback Church on Thursday afternoon.
Although all leading presidential candidates were invited, Clinton was the only one to show up for the annual Global Summit on AIDS and the Church. She delivered a bipartisan message that emphasized the role of the church in addressing AIDS.
“Twenty five years ago when people ” mostly young gay men ” started dying of an unnamed disease, we didn’t talk about it in church,” she said. “We’ve come a long way. Not only can we talk about AIDS in church, but churches can lead the way.”
The three-day event leading up to World AIDS Day on Saturday is part of Saddleback Church Pastor Rick Warren’s global assault on the disease, with an approach that claims churches worldwide as the most capable network to address the problem.

(via)
Isn’t this the sign of the coming apocalypse? (hehe) Props to Clinton for reaching out and being the only candidate willing to show up and talk about this issue.