“My sense from talking to non-campaign sources is that the GOP has been able to stay close to Obama in early voting and will win election day voting. I think economics voters and religious freedom voters, some of whom are Democrats, will push Romney over the line in Ohio.
“I think senior citizens, white voters in general, Catholic voters and blue collar voters help Romney. I think a decreased youth vote hurts Obama.
“If you take a polling average in Ohio, the President is three points ahead. Republicans tend to do two points better in Ohio than the polling and Democrats tend to do one point worse than the polling. That puts Ohio tied and I think passion for Romney makes up that gap.” (source)