...and that +4 is me being nice and assuming that the Democrats will take two of the open R seats (they won't) and keep two of Cook's Democrat Tossup seats (they won't do that, either). One of each sounds more likely, making the final total at least +6... and if we run the table at +8 it's a 51/49 Senate.
By the way: that's not the worst-case scenario. That's a scenario that assumes that Senators Boxer, Feingold, Gillibrand, & Schumer don't do anything stupid. Or Candidate Blumenthal.
Snickering based on this latest Cook Political Report survey.
PS: Sen. Bayh really handled this retirement announcement... poorly. And what is Bayh going to do with that 13 million war chest, anyway?
Crossposted to Moe Lane.