This whole fake news is a made up controversy by the mainstream news sources to give the people something else to blame and try to overshadow the real debate. The real problem as I see it is the proliferation of fake experts. What really caused the news media to go over the deep end this election cycle is fake fact checkers. Snopes is far from perfect and is biased, but Polifact just makes shit up (1)(2). They literally have different people saying the same things, and they award one a rating of "Mostly False" (its way off, 1/3 of the quoted number) and the other "Mostly True".
With access to these fake experts the news can say anything it wants, and provide sources and experts to back up their news. The media creates these "experts" by giving them credibility, while in turn these "fact checkers" lend credibility to the media. It's a cycle of both self delusion and self promotion.