And yet just when the news is getting good, Rove is calling Silver's whole methodology into doubt. On Wednesday, he tweeted a link to a National Journal column titled "Why I Don't Agree With Nate Silver: Number-crunching Senate prediction models are fun to follow but are not very useful." "Smart piece: may disagree w/ some specifics, but major point is correct," Rove wrote. The major point is that the methodology behind Silver's projections is flawed: "Unlike baseball, where the sample size runs in the thousands of at-bats or innings pitched, these models overemphasize a handful of early polls at the...