Stephen Colbert touched on Elon Musk's exit from the Trump White house during his monologue on Monday's "The Late Show."

“Late Show” host Stephen Colbert on Monday mocked President Donald Trump for sharing a bizarre conspiracy theory that Joe Biden was executed in 2020 and replaced by a robot clone. “Obviously, this is absolutely crazy,” Colbert said. “You can’t be a robot and a clone, OK? It’s complete madness.”