There are some who always vote Democrat no matter what.
There are some who always vote Republican no mater what.
And then there are those who can go either way in various elections depending on this and that at the time. It is those independents and others in the middle that determine who wins.
Maybe some of them can excuse their 2008 vote for Obama by claiming temporary insanity due to the economic emergency and being hypnotized by Obama’s purported smarts and “charms”.
If they vote for him again in 2012, they will prove that their insanity is permanent.