Already just a few months into its founding, Britain’s new left party has been dominated by factionalism and infighting. These are problems that have always plagued left populist movements. Your Party could learn from their history.

Review of Your Party: The Return of the Left, edited by Oliver Eagleton (Verso Books, 2025)

The case against left populism is that it is too leader-centric. When Podemos launched in Spain it wasn’t long before it was accused of betraying the protest movement that helped set the scene for anti-establishment politics. In 2015, the party’s leader Pablo Iglesias made a bet on overtaking PSOE, the centrist socialist party. When he failed to do so, Podemos appeared, for a moment, to be too top-heavy to endure.

La France Insoumise is another example. In this case i

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