La importancia del voto por adelantado

Nate Silver:

About one-third of Floridians have already voted. Since Mr. Gingrich only led Mr. Romney for a few fleeting days in the polls, that means that Mr. Romney should have banked an advantage, and that Mr. Gingrich would need to win by perhaps 5 or 10 points on Election Day to claim the state.

That could also lessen the impact of late-breaking developments in the news cycle — like Mr. Gingrich receiving the endorsement of Herman Cain.