Morris and McGann go state by state through the 8 likely states, and make good arguments for another 3. Only 10 are needed. If 2010 is indeed a "wave" election, as many have predicted it will be, GOP Senate control is far from impossible.
Speaking of which, Lisa Murkowski has conceded defeat in the Republican Senate primary in Alaska. She is only the latest of several incumbents who have been taken out by their own party, often with the aid of the tea party activists.