And yes, Kos has targeted tough races so the fact that there's been a lot of losses isn't unanticipated.
On the other hand, he has helped win some races, too. Ask Stephanie Herseth if the netroots helped her campaign.
Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. -- Perlis's Programming Proverb #58, SIGPLAN Notices, Sept. 1982