Someone wrote that Obama will turn out in the long run to be like a Truman rather than like Carter. I certainly hope that it turns out to be that way.
Although it's also quite 'unfair' that Carter is considered to be a 'failure' for whatever reasons. It just shows how little leverage presidents really have on the larger sweep of events.
It's clearly weird that Reagan has turned almost into a demi-god in Republican circles and even Democrats find it hard to criticize him.
It's no wonder therefore that Mark Twain's memoirs are at no. 4 on bestseller lists whereas George W. Bush's memoirs are almost 'guaranteed' to reach the no. 1 position.