October Rankings: (Almost) Everything breaks for Democrats

October is coming, so it's time for our new Senate Rankings. September was a great month for Senate Democrats. Is started with news that John Warner was retiring, featured the endless saga of Larry Craig's guilty plea to lewd behavior, saw another crucial GOP seat open up in Nebraska and was marked with recruitment coups with the candidacies of Mark Warner in VA and Jeanne Shaheen in NH. In fact, the only bad news Democrats are fearing now is that Bob Kerrey might end up taking a pass in Nebraska -- but even there, the fat lady hasn't yet sung.

All of this is really icing on the cake for Democrats, who already felt great before Labor Day. Not only is the GOP is defending 22 seats, and the Dems only 12, but the NRSC has been doing poorly in fundraising and recruitment, failing to move to target states beyond... the one state of Louisiana. Democrats, on the other hand, are expanding the map left and right: While they are huge underdogs in TN, KY, NM, TX, and ID, odds are they will at least put one of those in play (just like VA in 2006 and KY in 2004 became competitive only in the last stretch). And the most problematic second-tier seat is turning to be Alaska, where incumbent Ted Stevens is facing significant bribery allegations.

The coming weeks are likely to bring more news that will determine how some of these races shape up. Bob Kerrey's decision is obviously what everyone is waiting for, but there are other important questions: Will Craig retire as he had promised? Will there be more open seats, with all eyes turned towards SD's Tim Johnson, AK's Stevens, and NM's Pete Domenici? Will Democrats find candidates to run against Dole in NC, Domenici in NM, Stevens in AK, McConnell in KY? All of these races could end up on the map, but Democrats have to succeed in their recruitment efforts first.

Outlook: Democratic pick-up 4-7 seats.

Prediction: Democrats pick-up a net 5 seats, for a 56-44 majority.

The full rankings are available here, after the jump.