Joe Biden is officially running again! The 80-year-old president has posted a video promising “freedom” for Americans and to “finish the job”.

Jim Messina, who masterminded Barack Obama’s re-election campaign, tells the Americast team that Democrats should be praying every night for Donald Trump to be their opponent, why he thinks it makes sense for Kamala Harris to stay on as vice president, and how Biden’s team can make sure his age isn’t the elephant in the room.

Sarah visits a college baseball park in North Carolina to see which way voters are swinging. And Marianna checks in with our Undercover Voters, but some of them are actually distracted by the shock exit of influential anchor Tucker Carlson from Fox News.

HOSTS: • Justin Webb, Radio 4 presenter • Sarah Smith, North America editor • Anthony Zurcher, North America correspondent • Marianna Spring, disinformation and social media correspondent

GUEST: • Jim Messina, Barack Obama’s re-election campaign manager

GET IN TOUCH: • Send us a message or voice note via WhatsApp to +44 330 123 9480 • Email Americast@bbc.co.uk • Or use #Americast

Find out more about our award-winning “undercover voters” here: bbc.in/3lFddSF.

This episode was made by Daniel Wittenberg with Alix Pickles, Natasha Fernandes and Rufus Gray. The technical producer was Mike Regaard. The senior news editor is Sam Bonham.