The Republican and Democratic presidential candidates traded claims over key election issues including the economy, immigration and abortion. They discussed policy but personal attacks also dominated their first debate. So, who had a good night, and to what extent will this debate sway voters, with less than two months to go before polling day?

Sumi Somaskanda hosts this episode from Philadelphia, where the debate took place. She’s joined by Courtney Subramanian and Bernd Debusmann, from the BBC’s North America digital team.

Producers: Richard Moran and Tom Kavanagh.

Sound Engineer: Hannah Montgomery.

Assistant Editor: Sergi Forcada Freixas.

Senior News Editor: Richard Fenton-Smith.