It's inevitably Cheney. I can prove it beyond the shadow of a doubt, and with geometric logic. Cheney must have helped W with the list of potential nominees. At last, Cheney had to have admitted that the best candidate is Congressman Billybob, at which point the President would have agreed there's none better, except V-P Dick Cheney himself. Then wah-la! The overhead light goes on.
It puts the best man on the bench, positions Condi for 2008 (she replacing Cheney) and gets Karl off the griddle.
Additional bonuses: Dems have apoplectic fits, media runs out of ink.
FNC reporting that the AP is saying the President will make an announcement at 9:00 Eastern. AP has been wrong before though.