by repeatedly pointing out errors (however trivial) out of the tens of thousands of news stories that are published every day
In other words, exactly the same thing the New York Times (and others) do with Trump's utterances. Please don't pretend that this is a one-sided thing.
Only with Trump, you can just wait for the next 4 sentences he utters, and at least 3 of them will have at least 1 error each. The fourth will be 100% opinion (It will be the GREATEST 'x'!)