I'll play this greatest of all games. I think Clinton will go with Tom Vilsack, or possibly Wesley Clark. Obama should pick Kansas's Kathleen Sebelius, but given his relative newness in politics, it's hard to suss out whom he trusts enough to make a prediction. I wouldn't be surprised to see Edwards pick Evan Bayh, as they're quite close and a moderate midwesterner helps his supposed "electability." I agree that Giuliani might go military, though I wonder if Petraeus is truly craven enough to intervene in the 2008 election. More likely is that Giuliani goes Christian to dodge a third-party primary, choosing Brownback, Huckabee, or some other trusted theist. Romney will pick some other business-savvy executive type -- go down a list of recent, successful Republican governors and see who you end up with. Thompson will pick the Ghost of Ronald Reagan. The Constitution says nothing about vitality. --Ezra Klein
