This may seem counter intuitive but the news that Bob Etheridge is not running for the Senate is good news for Democrats.
At this point the chances of a Republican taking over his open Congressional seat are better than the chances of his beating Richard Burr would have been.
The political climate may turn around for Democrats by this time next year, and if it does I'm confident whoever the party's nominee is will have a very good chance of beating Richard Burr. But as things stand today an Etheridge candidacy was not worth the risk of losing his House seat. I don't think 2010 is going to be a good year for Democratic politicians to gamble.