I fear I see this coming. 1- Cheney steps down 'for health reasons.' 2- Bush appoints one of the front runners say, Gulianni, to be temporary VP. Meanwhile he, Rudy, gains more exposure, can posture behind the office, show the look of one who is in the center of the action and play the game more effectively... looking presidential, or almost. W does it for the party and for the kindness with which he'd be treated as he goes out.
It could work.
Oughta be a law.