>They have verifiable facts and truths in greater abundance.
For many, trust in the messenger is more important than actual facts and evidence (it's no coincidence that Fox News changed their slogan to "Most Trusted"). Trump is trying to undermine trust in the messengers (journalists who present facts and evidence).

It worked for climate deniers... Republicans and industry-funding "think-tanks" have succeeded in convincing a large segment of the U.S. population that scientists are "elite" and "liberal" (ignoring that scientists come from many different countries and political backgrounds), and many people discount scientific evidence because of this distrust in scientists.