This week, Justice Stephen G. Breyer is expected to announce his plan to retire from the Supreme Court at the end of its term this summer. Breyer’s signal comes after a year-long pressure campaign from the political left and others anxious to ensure that Democrats control who replaces the court’s most senior liberal justice. Guest: Mark Joseph Stern, who covers courts and the law for Slate.If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices