Breaking news: Ben Nighthorse Campbell
is not running for re-election.
I'm guessing this puts the CO Senate seat very much in play-- I don't know if we have any very strong candidates there, but off the top of my head I can't think of a very strong candidate for the Republicans to run either. People who know more about the possible candidates and how easy or difficult it would be for new candidates to enter the Democratic primary at this late date are invited to weigh in.