Well, since you bring it up, I have to question why so much 'fake news' is coming out. In the long run, such would only undermine the media which convey it, with little short term gain. Or is it to the benefit of the 'sources' to ensure that the media appear even less reliable than they have been considered in the past?
Think it's simpler than that.
All three sides have beefs - Trump, because he's fighting some serious headwinds. The Dems because Trump gives them gas. And the media because they resent the proles ignoring their "betters" during the election. All three groups have hit on the same tactic...
If you can't blind 'em with science, baffle 'em with bullshit.