Election switchers

Joshua Marshall with a take I hadn't previously considered on the upcoming election:

I take it as a given that virtually no Gore voters from 2000 will pull the lever for Bush. But how many lightly-committed Bush voters from 2000 will hold him to account if they believe he gambled big and gambled unwisely with America's honor and safety, and came up short? I think more than a few. And since there were more Gore voters than Bush voters last time anyway, well ...