Trumps involvement with the ACN pyramid scheme is going to be a negative for him. Not going to be easy for him to make this go away.
They are not a “pyramid scheme” as defined under In re Amway Corp. (93 F.T.C. 618; full name In the Matter of Amway Corporation, Inc., et al.) 1979.
https://en.wikipedia.org/wiki/In_re_Amway_Corp.