Nate Silver @NateSilver538
I don't really buy this, at all. Biden is a former VP whose positions are (with some but not many exceptions) close to the median of the Democratic electorate. Giuliani had never held federal or statewide office before and his positions weren't well-aligned with the GOP base. — PolitiTweet.org
Steve Kornacki @SteveKornacki
Biden isn't Jeb. But I'm still not sure he won't end up being Rudy. https://t.co/6YWCfGsiFK