There was something of a political earthquake in New York overnight. Three left wing Democratic candidates, endorsed by Mamdani, sweeping out established Congressional characters and hailing in a new era of progressive politics in the Big Apple.

Mamdani's political stardust shows little sign of waning - is he now the most powerful figure in his party? And what does that mean for the future of the Dems?

We speak to Ben Rhodes, one of Barack Obama's closest aides during his presidency, and author of a new book 'All We Can Say' - a history of America through political speeches - about the magic of Mamdani, and the malice of Donald Trump.

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