About southern Blue Dogs, good riddance. The next democratic winning coalition will be a truly liberal one.
It will be much harder to win the House without them...
Democrats can certainly take the House with a liberal coalition. They will still have the majority African American districts in the South and they can replace the Blue Dogs with their gains in the West... a region that will keep on growing.
The Blue Dogs simply don't fit in with this party anymore. I had always thought the divide was based around social policy, where conservative Southerners would break from the social liberals in Congress. Their opposition to even the healthcare bill shows that they aren't just social conservatives, they are all out conservatives and don't belong in the party anymore.