One of Richard Nixon's most famous quotes...right up there with "I am not a crook"... had to do with presidential immunity."When the president does it" he said "that means that it is not illegal." That idea – that you can't prosecute someone for actions taken as president - the Supreme Court has never actually ruled on it.On Thursday, the Justices will take a crack, with the federal election interference case against former president Donald Trump hanging in the balance.We preview how things might go.For sponsor-free episodes of Consider This, sign up for Consider This+ via Apple Podcasts or at plus.npr.org.Email us at considerthis@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy