Bias is a problem that can interfere with the output of people who think they are doing good-faith journalism. But anyone with a blog can write what other people will mistake for news, and if they're good, can make it go viral. No relationship with the truth, not even an attempted one, is involved.
Conservative slant headline: Hero CCW Bystander Stops Mass Shooting.
Liberal slant headline: Mass Shooting Underscores the Need for Gun Control Now.
Fake news headline: New Proof That Lizard Men Hired Crisis Actors in Plot to Take Your Guns.