If CNN wanted to be biased, they should at least have done a better job of hiding their desire to make the election a true horse race.
http://www.cnn.com/...
SPECIAL NOTE OF CAUTION #2: The sample of debate-watchers in this poll were 31% Democratic and 33% Republican. That indicates that the sample of debate watchers is about eight points more Republican than an average CNN poll of all Americans, so the respondents were more Republican than the general public.