John Kasich and Ted Cruz are openly coordinating their campaign strategies to stop Donald Trump from reaching the 1,237 delegates he needs to clinch the GOP nomination before the convention. In this episode of FiveThirtyEight’s elections podcast, the crew discusses whether the two underdogs’ new strategy will work and force a contested convention. Then, Clare Malone tells the story of Pennsylvania’s delegate loophole primary from the ground. Plus, Nate Silver talks about his own primary vote.

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