Jon Chait thinks Giuliani and Lieberman would make a formidable ticket in 2008. Jon writes: Lieberman strikes me as both a shrewd choice for Veep and a likely candidate to get it. Republicans have been largely discredited, so their best chance is to persuade the public that the Democrats are not a legitimate alternative. Lieberman, as a nominal Democrat, would have the best chance of making the case that his party has been taken over by a left-wing fringe. Indeed, that's pretty much what he's saying now. I'm skeptical.