Tim Walz is not a household name in American politics and until recently wasn't even considered a frontrunner to be Kamala Harris's pick as vice president. But after days of speculation, Harris has chosen Walz as she looks to gain support among working class and progressive voters.

What does his selection tell us about the Democrats strategy to retain the White House in November? Justin, Sumi and Marianna analyse Walz's selection with Newscast's Adam Fleming on another big day in the election campaign.

HOSTS:

* Justin Webb, Radio 4 presenter * Marianna Spring, Disinformation & Social Media Correspondent * Sumi Somaskanda, BBC Chief Presenter

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This episode was made by Rufus Gray with Jack McLaren and George Dabby. The technical producer was Dafydd Evans. The series producer is Purvee Pattni. The senior news editor is Sam Bonham.