Drum looks into the future:
If this happens, the upshot is that both parties get moved to the right. Most of the Democratic pickups will be in centrist states and districts, which will move the Democratic caucus moderately toward the center. At the same time, it will remove these centrist states and districts from the Republican side, which will make the GOP caucus not just smaller, but even more conservative than it is now.
As a touchstone, the Republican Study Committee, the hardcore conservative wing of the House GOP contingent, currently represents a little over half of their total strength. After Tuesday they’re likely to represent nearly two-thirds, which means that the rump of the House Republican caucus remaining after Tuesday is likely to be almost entirely in the hands of the most faithful of the movement conservative faithful. These true believers are not likely to give in quickly to the notion that hardcore conservative ideology needs a bit of freshening up if the party wants to regain its competitive edge. On the contrary, they’ll probably double down, convinced that they lost only because John McCain and George Bush abandoned the true faith that America truly yearns for.
The Dish 