The Special Election Scorecard

The GOP picked up two congressional seats yesterday. Details of Anthony Weiner's lost seat here. Nate Silver looks towards 2012:

[T]he four special elections, taken as a whole, suggest that Democrats may still be locked in a 2010-type political environment. Democrats might not lose many more seats in the House if that were the case, since most of their vulnerable targets have already been picked off, but it would limit their potential for any gains. And it could produce dire results for the Democrats in the U.S. Senate, where they have twice as many seats up for re-election.