Former President Trump on Monday told a crowd of supporters in Pennsylvania that he doesn't like anybody who doesn't like him, joking that it was a "personality defect." The former president went on a lengthy rant about late night hosts, bashing NBC's Jimmy Fallon and ABC's Jimmy Kimmel, who frequently mock Trump. He then spoke about his recent appearance on Greg Gutfeld's late night Fox News program, and recounted how he and Gutfeld did not always see eye-to-eye. "I don't like anybody that doesn't like me. I'll be honest, when they don't like me, I don’t like them. OK?" Trump said. "Sounds childish… That’s the way it is. Call it a personality defect." Trump went on to say he enjoyed his time on Gutfeld's show, pointing to their "great chemistry." "We actually liked each other," Trump said with a laugh. Trump appeared on Gutfeld's Fox News show last week, days after the second assassination attempt against the former president in as many months. The two joked about the incident on Gutfeld's show.