It is not necessarily knowing the future but finally early voting is going to help Santorum. He has Tennessee in the bag because he is big time ahead with early voting. Georgia doesn’t take much to know that Newt will win. Mass and Vermont are Romney areas so it would be a jaw dropping if he lost there. Oklahoma have the same early voting which Santorum has a big lead so that is pretty easy. Ohio is a bit of a mystery but Santorum will probably win by a squeaker. It was not too difficult to figure out. Alaska to me is 100 percent difficult to guess.
Early voting in OK is only the Friday, Saturday and Monday before an election, whereas in Tennessee it runs from 20 days before the election to 5 days before the election, so it’s never really very much (if any) in OK, whereas it’s always quite substantial in TN.