Bush is a sad guy.

[T]he range of topics discussed reflected our shared attention-deficit disorder: [...] why he was relying on General Petraeus to be the chief spokesman for Iraq policy ("Because I've been here too long--every time I start painting a rosy picture, it gets criticized"); [...] and his emotions ("I do a lot of crying in this job").  A fly buzzed around us, and Bush took some vicious swings at it.  "Damn, I woulda had it, Draper," he moaned as he missed again.

- from Robert Draper's upcoming book, Dead Certain

Honestly, so much of his current behavior is explained by W.  No wonder he endorsed it. 

Also, here's a quotable I agree with, by Ken Blanchard paraphrasing Lewis Black (who is, by the way, my favorite fuckin' comedian/commentarian ever - I would say that Lewis Black on politics is like me on politics, but I don't know all his opinions so I'll just say I empathize with what I've heard him say and how he says it): "Republicans are the party of bad ideas; Democrats are the party of no ideas."