If the media (CNN, NNC, FOX) can be shown to have anneffect on polls, then i would say CNN isndead against him.
CNN just shows love stories about minorities, impoverished foreigners with dreams about a CNN inspired life, and proud ohotos of Hillary Clinton and Michelle Obama.
Finish off with doubtful words next to a bad photo of Trump and a story about a 7 year old Australian boy who sold enough lemonade to buy a pony and you have theirnfront page covered.
http://edition.cnn.com/2016/10/16/asia/australia-boy-pony-trnd/index.html
It 's just 21st century dross and it is very biased against Trump.
CNN sucks. I don't know that it is active bias though so much as the lamestream media being unable to be arsed to do any actual journalism when it can wallow in the pit of cheap sensationalism.