Highlighting two relatively tame tweets from the president, one of which stated he would not attend Biden’s inauguration on Jan. 20, the company argued that they had to be viewed in a wider context.

"These two Tweets must be read in the context of broader events in the country and the ways in which the President’s statements can be mobilized by different audiences, including to incite violence, as well as in the context of the pattern of behavior from this account in recent weeks," the company said. "After assessing the language in these Tweets against our Glorification of Violence policy, we have determined that these Tweets are in violation of the Glorification of Violence Policy and the user @realDonaldTrump should be immediately permanently suspended from the service."

https://www.foxnews.com/media/twitter-ceo-jack-dorsey-defends-trump-ban-but-admits-his-companys-power-sets-a-dangerous-precedent