[throwaway2037]

    > because of his pre-9/11 mismanagement

I'm not here to defend GW Bush. He did many stupid things. But I don't recall a lot of criticism around his "pre-9/11 mismanagement". Can you offer some specifics? The hunt for Osama Bin Laden started (at least) with Clinton and continued with GW Bush. Unfortunately, neither was able to stop him before the 9/11 attacks.

[twoodfin]

There was a cottage industry in elaborating the theory that Bush and his administration were unnecessarily caught flat-footed or even knew the attacks were imminent.

Richard Clarke is a good place to start:

https://en.wikipedia.org/wiki/Richard_A._Clarke

He seemed more interested in publicity and exaggerating his own bureaucratic importance than being objective—tendencies the political opposition and media were in no mood to criticize.

But YMMV.