The self-proclaimed ‘Childless Cat Lady’ Taylor Swift has endorsed Kamala Harris… but what difference is it likely to make, in terms of persuading the undecideds, and getting new voters registered? We also look back at the history behind celebrity endorsements from Frank Sinatra’s backing of JFK to Bruce Springsteen and Ronald Reagan, what motivates a star to back a politician? When does an endorsement backfire? Justin, Sarah and Marianna speak to Tyler Foggatt, a senior editor at The New Yorker magazine.

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This episode was made by Purvee Pattni with Catherine Fusillo, Alix Pickles and Claire Betzer. The technical producer was Hannah Montgomery. The series producer is Purvee Pattni. The senior news editor is Sam Bonham.

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