Interesting Times comments on the recurring theme of Bush's incompetence and dishonesty (which, however often the former is used to excuse the latter, are by no means mutually exclusive).
This administration is both incompetent and corrupt (being corrupt involves more than just committing crimes). Which is why it will easily rank as one of the worst in U.S. history. But, when you add in the ideological sense of "we're right and you're wrong and we will screw the pooch if it is necessary in order to prove it", then you reach a level of awfulness that no administration, to my knowledge, has ever reached.
Mind you, he's including such luminaries Warren G. Harding in this list. Ouch!