I think this is a pretty intelligent pick by the Obama camp. He is an attack dog and has been doing so in his Judicial Review seat. He was very funny in the Democratic primary. Not sure if he brings a state with him, but he is definetly blue collar (even though his son is one of the highest paid lobbyists in DC).
Besides having the 3rd most liberal voting record in the Senate, and he has voted for almost every tax increase since coming into office in 72'. I don't know a ton about him, which is why i started this thread.