ACN’s scam involved promoting video desktop telephones. Trump was their highly visible spokesman for the product. Problem was, they didn’t work worth a damn.
I got one, and it never worked right. ACN continued to bill me for it monthly, so I canceled that credit card right away. They continued to dun me for a couple of years with nasty messages about paying up or we will bring legal action. I told them to piss off.
Since I was a computer engineer my sister in law approached us one time about a MLM company they were working with that sold proprietary technology that allowed movies to be downloaded in movies minutes
I told them it was impossible using current technology, when the owner got arrested by the FBI for fraud no one ever apologized to me