I want to be a little bit off topic in saying that Kay Hagan's reelection campaign in 2014 will be a real wildcard. So far she has shown herself to be liberal, who has voted with her party very very consistently so far. North Carolina will probably move to the left by 2014, but she will let her constituents down if she votes hard left in the next 6 years.
A lot of the Democrats that were elected in 2006 and 2008 will have a harder time getting reelected in '12 and '14. I'm already really looking forward to Al Franken's reelection bid.