“Having agreed to go on your show, I was particularly disappointed in the terrible comment you made about Scott Brown’s daughters,” Frank wrote.

“I think it’s possible to have fun, and even to poke fun at people in my businesses, without this kind of completely unfair attack,” the letter continues. “And while I don’t usually feel compelled to comment on what various entertainers do, since you did include me in that show I wanted to make it very clear that I thought what you did was wholly unfair and inappropriate. It’s the kind of thing that makes it less likely that I or others can cooperate with you in the future.”