The tech billionaire also took aim at the Anti-Defamation League in the same X thread.
“The question is, are you elevating it? Are you expanding it?" the group's CEO said.
Critics are firing back after he threatened to sue one of his company's most prominent critics.
"It looks like we have no choice," the billionaire wrote on the social media site.
“I think I know who did it, but I ain't got no proof,” Stan Sells said. “It's a neighbor I haven't gotten along with for several years.”
ADL's Jonathan Greenblatt said Trump is "running the most unapologetic white nationalist campaign that we’ve ever seen."
The organization accused "SNL" and NBC of "normalizing and popularizing antisemitism."
The NBA guard and the Brooklyn Nets will each donate $500,000 to anti-hate groups after Irving’s apparent promotion of a much-condemned film.
Over 3,300 signed up for the far-right extremist group in Texas while New York State had the most law enforcement join, a new report says.
Police arrested 31 members of the white supremacist group on Saturday after learning that they were planning a riot at a Pride event in Coeur d’Alene.