64.1

"In terms of turnout, America voted in record numbers. It looks like 136.6 million Americans will have voted for president this election, based on 88 percent of the country's precincts tallied and projections for absentee ballots, said Michael McDonald of George Mason University. Using his methods, that would give 2008 a 64.1 percent turnout rate.

"That would be the highest turnout rate that we've seen since 1908," which was 65.7 percent, McDonald said early Wednesday.