Buzz, buzz, buzz. Marc considers the pairing:

I think the best way to look at an Obama-Bloomberg ticket is by noticing their complimentary traits. Obama isn't much of an administrator or a details guy by his own admission, while Bloomberg is so concerned about Your Health and Welfare that he studies intently the ins and outs of congestion pricing and trans-fats. He's a prime minister-type -- although he brings an outsider's sense of efficiency to the bureaucracy. Let Obama be the vision guy; Bloomberg could be the brass-tacts administrator.