Political Realignment Watch
Fun fact: The latest Conservative Index [pdf], the John Birch Society's scorecard for congressthings, gives Senate Democrats a higher average score than Senate Republicans. Of course, this being the Birchers, both parties finish pretty miserably. (It was Birch Society founder Robert Welch who pegged Eisenhower as a "conscious, dedicated agent of the Communist Conspiracy," so they've been down on the GOP for a while.)