Biden’s swansong

Joe Biden will take the stage at the Democratic National Convention tonight as he cedes the top spot on the presidential ticket. Our panellists Julie Norman and Nik Gowing discuss whether expected nominee Kamala Harris’s unity message can survive party divisions over Gaza as prospects of a ceasefire seemingly wane. Plus: what bright idea could win you 50,000 Swiss francs? See omnystudio.com/listener for privacy information.