"Well, here's the thing: there is no proof that he did that. If you think about it, it's ridiculous. Have you ever held one of those things? There's no way it was possible," Oliver explained. "But, if the president went on TV and told you it was true, you'd go, 'I knew it! Thank you! I knew it! Finally someone said it!' But that loop gets much more dangerous when you're not talking about something as silly as gerbils. Trump validated his supporters' beliefs about voter fraud, and in turn, they validated his."