Yeah, that 80% number is from Bernard Goldberg's statistics in his 2002 book BIAS, on the statistically quantifiable liberal bias of the media in every poll of news reporters (who identify as "liberal" or "very liberal" in every poll of reporters, consistent in polls spanning the previous 50 years).
But more recently, that number may be much higher than even that long-standing 80% number.
As I quoted Tim Groseclose many times,
Washington DC-based reporters supported Obama at a ratio of 93%, that Groseclose pointed out is a higher ratio of DNC support among reporters than in the most densely Democrat/liberal regions of the country, such as Boston, Massachusetts, and Berkeley, California.
A statistic released over the last few days cites that 96% (!!!) of all donations by reporters to the two presidential candidates all went to Hillary Clinton. No bias in reporting, I'm sure. None at all.
