He'll have a legacy for sure, and it will be up there with Reagan's.
Saddam is going to be swinging in the next 48 hours, and that is entirely Bush's 'fault.'
As is the fact that we have not been attacked since 9/11 to his credit (Rummy said that his success has actually worked against him because it has made it seem that the threat is not as great as it really is).
A free Afghanistan and Iraq, an unparalleled economic boom aren't going to go unnoticed by history either.
The Bush legacy will be powerful.