How big money is chasing a tiny number of voters. It’s (almost) official: Joe Biden will face Donald Trump in November. Both men did well enough on Super Tuesday to look ahead to the general election. Now, it gets interesting. The campaigns need to find the few Americans still unsure who should be president and get in their heads.

James Reynolds talks to the BBC’s Special US correspondent, Katty Kay, and Eli Yokley, from Morning Consult.

More episodes to understand the US election: Meet Trump's new inner circle: https://podcasts.apple.com/us/podcast/meet-trumps-new-inner-circle/id1715473158?i=1000642760501 Joe Biden's ageing brain: https://podcasts.apple.com/us/podcast/joe-bidens-ageing-brain/id1715473158?i=1000636759143

We want your ideas, stories and experiences to help us understand and tell The Global Story. Email us at theglobalstory@bbc.com or message us or leave a voice note via WhatsApp on +44 330 123 9480. #TheGlobalStory This episode was made by Richard Moran and Neal Razzell. The technical producer was Matt Hewitt. The assistant editor is Sergi Forcada Freixas and the senior news editor is Jonathan Aspinwall.

Could just 100,000 people decide the US election?