(I thought reporting the latter was over-aggressive. It was anonymous, uncorroborated data from arguably the most dubious possible source, Russian intelligence.)
* Fox News and other Fox/Murdoch publications world wide claim to be traditional news organizations, but really are editorializing. Ironically, this undermines the reputation of real news organizations - people assume they do the same.
* Many on the right now value ideology over fact. Information that fits the ideology is accepted; inconvenient fact is not. Climate change, Obama's citizenship (doubted by 40% of Republicans, IIRC), and Saddam Hussein's possession of WMD are simple examples.
* The demonization of any information that doesn't fit the ideology has resulted in the right continually demonizing real news organizations, who report based on fact and not ideology.
I'm not writing that to be partisan. There is a critical problem on the right that is destroying society, democracy and civilization, and an attitude that they are not stewards of those things - as if there is no consequence. If it was happening also on the left then I'd say the same, but it's not.
The funny thing is once the election was over, suddenly a slew of articles came from WaPo talking about how Bernie may have had gotten short changed from the primaries and how they may have affected the election, be it preventing him from facing Trump or dividing the Democratic voter base. Like, only NOW does this newspapers care about Bernie. A lot of supporters for Sanders won't forget the treatment he got from the Washington Post.
Plus, in the case of Trump, his anti-establishment rhetoric may have meant it worked in his favor to not get endorsements from the media elite.