As much as they might like to, Republicans aren't spending all of their free time laughing about the Democratic Party's messy, internecine squabbling. They still need to pick a vice presidential candidate, after all. And as the National Review points out, the VP selection is perhaps more important than usual for uniting Republicans because so many of them hate John McCain. So who's working GOP back channels and tidying up for background checks? Radar provides some very thoughtful analysis as to who might be McCain's arm candy this fall.