Legendary Hustler publisher Larry Flint penned an open letter published in the Las Vegas Review on Monday, offering “between $50,000 and $1 million” to anyone with proof that an adviser to Republican presidential candidate Dr. Ben Carson is guilty of sexual harassment.

The paid ad describes a lawsuit that’s almost twenty years old, in which Armstrong Williams — a staunchly conservative right wing radio show host — accosted his former personal trainer Stephen Gregory at least 50 times. According to documents, Williams repeatedly “kissed him on the mouth, grabbed his buttocks and genitals and climbed into bed with him on business trips.”

Flynt calls Carson a “hypocrite” for associating with Williams:

“You have linked gays with bestiality and the North American Man/Boy Love Association. You have opposed same-sex marriage, accusing marriage equality advocates of ‘directly attacking the relationship between God and his people.’ Yet, you have partnered with an accused sexual predator.”

Flynt requests that Carson “disavow any and all relations” with Williams or he will pay for “confirmable information” regarding the relationship between Williams and Gregory.

Read the complete letter below:

h/t: Hollywood Reporter