What exactly is he going to campaign on in 2012? I could have sworn closing Gitmo was one of the cornerstones of his 2008 campaign.
You fail to understand the liberal mindset. Whether or not Gitmo was actually closed is irrelevant; the important thing to a liberal is that Obama promised to close Gitmo. He will not lose a single vote because he failed to shut it down. Not a single true-believer will switch his/her vote to the GOP because Obama didn't keep a promise. Obama knows the members of his base are a bunch of chumps with the attention spans of two year olds. They are as easily duped time and again as a cat chasing a laser pointer.