Matt says something rather obvious which other people have said in one way or another before, but it's a basic fact which seems to not be grasped by David Broder's Washington.
And, frankly, the fact that the two parties broadly reflect distinct ideologies is good thing, not a bad thing, even if it makes it harder for David Broder to figure out which dinner parties to go to. The weird New Deal coalition was, well, rather weird, and I don't see why one should be sad that the Democratic party no longer contains a bunch of Dixiecrats.
Certainly it's touching when politicians find common ground on unlikely issues, but it isn't especially important. Politics isn't about getting along, it's about getting things done.
