Evidence does exist, so this statement is baffling. As recently as June content moderators on Facebook were covertly recorded bragging about being politically biased. [1]
The same moderators explicitly claimed the company was "anti-Trump", and said "I think [all of the moderators] do that [delete posts for political reasons]".
Reading into the source (Campaign for Accountability), it's clear why they neglected to mention the evidence -- because they are politically biased themselves. [2]
[1] https://www.realclearpolitics.com/video/2020/06/23/facebook_...
[2] https://en.wikipedia.org/wiki/Campaign_for_Accountability
Well, they’re not. They have even carved out special exceptions to their content policy explicitly to prevent any punishment of Trump’s accounts even when he violates the policy.
FB should be ignored and media should not promote these articles. Sure, they can help if they want, but the primary information source should be the nodal election agency.
Americans have been brainwashed to view the government as some sort of an evil lunatic preventing all of them from becoming billionaires. This is a dangerous narrative and will ultimately lead the nation to dictatorship, as is already happening.