I would think the question of whether or not Iran gets nukes may have something to do with his placement in history.
Do you honestly believe that Bush has a plan for preventing Mad-dog Ahmadinejad from getting nuclear weapons? Iraq will soon be divided between the Iranians and Al Qaeda after Bush starts a premature withdrawal. Bashar al-Assad's regime in Syria will then fall to Al Qaeda, and things start to look very bad for Israel, for Europe and for the United States.