High stakes at the High Court

40 million Americans have $400 billion on the line as the Supreme Court weighs whether the Biden Aplan to erase student debt is constitutional. Plus: A new legal filing details how Fox put profit ahead of facts and politics ahead of fairness, broadcasting election lies they knew were b.s., and tipping off the Trump campaign about Joe Biden's advertising buys. And: We explore the nine-way brawl for mayor in Chicago, where crime concerns could leave incumbent Lori Lightfoot locked out of an April runoff.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices