Laurence Tribe, a professor of constitutional law at Harvard University, joined Cheddar News to talk about the legal underpinnings of the ruling to lift the federal travel mask mandate. "Judge Mizelle decided that she would issue a nationwide injunction, which she and other conservatives have criticized in the past," he said. "That didn't stop her from doing it this time. She did it by just wiping away the CDC's rule, and she did it, have to say, in an opinion that was, well, I'll be honest, really stupid."