And a paper published in March 2018 by Karsten Müller and Carlo Schwarz of the University of Warwick found that anti-Muslim tweets by Trump correlated with anti-Muslim hate crimes.
After almost four years of this behavior, Twitter and Facebook have taken the mildest possible action.
On May 26, Twitter added a fact-check tag to two Trump tweets that falsely claimed that mail-in ballots cast in California would be “substantially fraudulent” and result in a “Rigged Election.”
Twitter did not delete either tweet, but simply appended each post with a link and the caption: “Get the facts about mail-in ballots.”
Two days later, it hid a Trump tweet that appeared to threaten the George Floyd protesters in Minneapolis, stating that the post broke its rules around glorifying violence. Again, it did not delete the tweet.
Since then it has removed a video posted by Trump over claims of a copyright breach.
Facebook has largely left the president’s posts on Facebook and Instagram alone, citing a policy of not fact-checking political speech.
On Thursday, the company changed tack slightly and removed a Trump campaign ad that featured an inverted red triangle, a symbol once used by the Nazis to tag suspected Communists and other political opponents.
Facebook said the ad violated its policies on hate speech.