I don't like either political party but it was Cheney (even more than Bush) who ignored the warnings from US allies and the intel agencies that 9/11 was imminent.  Rank and file agents at FBI, CIA and DIA tried to stop the attacks but were thwarted by their bosses.  "Alec Station" at CIA refused to let their colleagues know that the hijackers had entered the country.  It was the Bush Cheney administration that did nothing when informed the attacks had started, in violation of standard operating procedure (the footage of Bush reading to second graders instead of being COmmander  in Chief was very revealing).

I didn't "vote" for Obama, either.  And I remember than then VP Bush (GHWB) sent weapons to the Iranian government in the 1980s, otherwise called IRan-Contra.