Posted 22 hours agoSubscribe to Screen Time NewsletterCaret Down"None Of That Was True": Stephen Colbert Just Fact-Checked Trump's Lie About His FamilyThe president made a series of wild claims, and The Late Show host was ready with a fact check.by Ed MazzaHuffPost WriterFacebookPinterestLinkHot Topic🔥 Full coverage and conversation on Politics Late Show host Stephen Colbert on Wednesday said President Donald Trump's event a day earlier "went off the rails pretty darn quick." CBS Photo Archive / CBS via Getty Images Trump was supposed to discuss new investments in artificial intelligence and energy, but then derailed himself with a long, strange ramble about his uncle, John Trump, who was a professor at MIT. Anadolu / Anadolu via Getty Images The president boasted that his uncle was "one of the great professors, 51 years, whatever, longest-serving professor in the history of MIT, three degrees in nuclear, chemical, and math." Bloomberg / Bloomberg via Getty Images "Brace yourself," Colbert warned his audience after playing the clip. "None of that was true." CBS / Via youtube.com BuzzFeed TrendingHot TopicLet's chat about all things PoliticsSee our Politics Discussions Trump's uncle was not the longest-serving professor at MIT. His undergraduate and doctorate degrees were in electrical engineering and he had a master's degree in physics - not "nuclear, chemical, and math." Anna Moneymaker / Getty Images Trump also said his uncle taught Ted Kaczynski, the "Unabomber" terrorist who killed people via mail bombs. The president told a whole story about asking his uncle what kind of student Kaczynski was. San Francisco Chronicle/Hearst N / Hearst Newspapers via Getty Images His uncle, Trump claimed, told him that the future Unabomber was "seriously good" and would correct the other students' work. Chris Brunskill/Fantasista / Getty Images "None of that is true either," Colbert said. CBS / Via youtube.com Kaczynski went to Harvard, not MIT. San Francisco Chronicle/Hearst N / San Francisco Chronicle via Getty Images "Even more insane," Colbert said, Trump's uncle died more than a decade before Kaczynski was identified as the person sending explosives and arrested. CBS / Via youtube.com "So why on Earth would Trump have asked his uncle about him?" Colbert wondered, then broke out his impression of the president to envision how it might have happened. Chip Somodevilla / Getty Images "Hey, Uncle John, Uncle Professor Dr. John Trump, professor, sir, uncle. You know that random guy who isn't famous at all and lives in the woods and machines his own screws?" Colbert asked in his Trump voice. "What was it like when you didn't teach him?" CBS / Via youtube.com See more in his Wednesday night monologue: View this video on YouTube CBS / Via See more in his Wednesday night monologue: This article originally appeared on HuffPost.