Nate Silver, in his role as New York Times political poll analyst, has generated a graphical analysis of the various Republican contenders for the 2012 nomination. Clearly we’re still the better part of a year away from the primaries, but what else did you really have to do this weekend aside from arguing over election predictions? Let’s take a look at the graph and then spend a moment discussing how it was crafted. We can skip over the relative merit of the chances assigned to each candidate (at least until the comments begin) since Nate took each person’s prospects for...