Success is Bad?

With the reports of success of the surge in Iraq, Dems are getting worried. Wait...I know...you think I'm being overly partisan. Ok...I'll quote them in their own words and let you decide for yourself. House Majority Whip (third highest Dem in the House) Rep. James Clyburn (D-SC) said a good report coming out of Iraq in September would be "a real big problem for us." So, is it just me or are liberal Dems (the big concern is that the Blue Dog Dems, the more conservative Dems, will abandon the party) more worried about success politically than success of our troops in Iraq?