In that order, a la Bush-Cheney? I agree with Grunwald and AS that this is a possibility. The problem, of course, is that this is not the combination that will appear on the primary ballot. Such a ticket would require Obama first getting the nomination on his own. Which, for the very reason an elder would be desireable on the presidential ticket, may make his bid difficult. I am a big fan of his though, and having Samantha Powers on his side certainly doesn’t hurt in the foreign policy realm.