Silver doubts Democrats can win back the House in 2014:
One should never say never when it comes to forecasting the outcome of an election two years in advance. But it might take a major scandal in the Republican party, or for Republicans to splinter into factions, for Democrats to have more than a remote chance of winning the House.
But Jonathan Bernstein points out that "biggest single factor in congressional elections … often turns out to be candidate recruitment":
By now, almost everyone knows that Republicans were clobbered in Senate elections during this cycle because the Democrats totally dominated the recruitment game. We know a lot less about what happened in House 2012 elections, however, and we have yet to see whether Republican infighting and pessimism in the wake of those elections will have any effect on the next round of potential tea-party primaries — and especially on whether Republicans are able to recruit strong candidates for winnable open seats in 2014. Of course, we’ll also have to see whether strong Democratic candidates are scared off by the possibility of a smaller, more Republican midterm electorate.
The Dish 