Is the “Two-Party System in the Throes of Splitting up into Four”?
Charles Lane, at the short form blog Post Partisan at Washington Post, thinks that the two party system is heading towards a split, either literal or de facto, between establishment republicans and the tea party on the right, and between moderate and more liberal democrats on the left. I’d sure love to see this happen, and a splinter of one of them move hard to the center, or a whole new organization in the center altogether.
As the split between right and center-right accelerates within the Republicans, I expect an internal Democratic bloodletting if that party loses Congress, between the left and the center-left. How much longer can these two aging party structures contain the contradictory forces within them?
Thing is… there are several factions within both parties, and always have been. The fractures seem to be getting more acute, but there really isn’t any significant movement to fracture a large portion of the base on either side out of their respective party umbrella… yet.
Here’s to hoping.
Read more at The Washington Post…

Thing is, the most likely faction to find itself out of power is moderate D's because they're in the most vulnerable districts.
Perhaps they could find common cause with moderate R's who have no chance in most primaries… but not sure about 4 parties. Somehow the labor/green factions have found an uneasy truce.
I hope you're right though.
My ideal would be some kind of alliance, between people like Kirk, Colling and Snowe, and moderate Dems… along with Crist, should he win. I had a post about this last week I think… about a theoretical "centrist caucus" or something. Too tired to look it up and link to it now, heheh
I don't think they're all crazy, and I didn't say I did. I just think they are mostly wrong.