Things may not be going as well as Al Franken hoped in the recount, but don't tell that to Nate Silver. The numbers junkie behind FiveThirtyEight.com predicts that Franken will win the recount — once all challenges are resolved — by 27 votes. (Related: Franken losing ground to Coleman on DFL turf How'd he come up with that number? It's little complex — OK, that's an understatement — but Silver basically did a regression analysis using recounted precincts where there were few or no challenged ballots (Franken has done well there) and projected it across the rest of the state....