However, it's recently become politically controversial to acknowledge this fact, I think because Trump uses "fake news" to disqualify criticism of himself and his administration[1]. But let's not pretend that journalism is without faults or bias just because (on average) the virtues of the fourth estate outweigh their flaws.
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0. https://en.wikipedia.org/wiki/Manufacturing_Consent
1. He's hardly the first person to have issues with his press coverage, but it seems like he's getting a bit more traction with his complaints. It helps that he has an observably hostile relationship with the press. But the term "fake news" was originally applied to right-wing blogspam/memes that showed up during the 2016 election, which were highly slanted, based on cherry-picked information if not outright lies.