The backer is POTUS. That was tweeted from his Twitter act.
https://twitter.com/realDonaldTrump/status/1340185773220515840?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1340185773220515840%7Ctwgr%5E%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fthedonald.win%2Fp%2F11R4q2appD%2Fgeotus-big-protest-in-dc-on-jan-%2Fc%2F