Harvard Law professor emeritus Alan Dershowitz accused former FBI Director James Comey of feeding the speculative frenzy around the investigation into President Trump, by leaving open the idea that some accusations against him are true, even though he has seen no evidence.

Dershowitz spoke on Fox News host Sean Hannity’s radio program, after Comey said over the weekend that it’s “possible” that Trump paid to watch hookers urinate on a hotel bed in Russia. He also said it’s “possible” that Russia has dirt on Trump that could be used as leverage against America.