Originally Posted by patteeu
It's really about the unreliable voters. People who, if they wait until the last minute, might not vote at all (because it's raining, because they forgot, because they scored a bag of weed and already have enough Funyuns so they don't really need to go out, or just because the lines are a bit long so **** it). If the campaigns can get these people locked in, they don't have to worry about it.
Obviously Obama is pounding the "vote early" message for the same reason the Republican infrastructure in Ohio tried to shut down early voting in Ohio before a judge told them to knock it off: Dem voters are less reliable than GOP voters.
If the GOP spent a lot of time, money, and resources to pound on the vote early message, they would just shift voters who would vote on election day. It makes more sense for Dem voters who might be poor and in inflexible shift jobs to pound into their skull to go ahead and vote on the weekend when they have a day off.