One of things that's been most puzzling about Bush is his reaction to failure, that maddening wacky grin and jaunty manner as the entire country, if not the entire planet, careens towards the abyss - Iraq, climate change, torture, Katrina, warrantless surveillance, and two recessions - just to name a few issues. This article, "Bush and the Psychology of Incompetent Decisions", does a great job of explaining the psychology behind his behavior.
As his decisions go awry, he exudes a troubling, uncanny aura of certitude (though some find it reassuring). He seems to expect to feel despised and alone (and probably has always felt that), as he has always secretly expected to fail.
We'll spend the next fifty years mopping up after him and his daddy issues.