>>If Cheney wants to go, Bush will let him. But he won't fire him.<<

He won't have to. When the investigations start, Cheney is going to find himself so incriminated that he will be impeached, convicted and booted. Bush will protest it, sing Cheney's praises and all that but, in the end, it's what he really wanted.

Don't underestimate Bush's political savvy. He knows how to protect himself and getting rid of Cheney will likely be enough to sate the public. Otherwise, who knows what might happen?