The biggest divide in our politics isn’t between Democrats and Republicans, or even left and right. It’s between people who follow politics closely, and those who pay almost no attention to it. If you’re in the former camp — and if you’re reading this, you probably are — the latter camp can seem inscrutable. These people hardly ever look at political news. They hate discussing politics. But they do care about issues and candidates, and they often vote.As the 2024 election takes shape, this bloc appears crucial to determining who wins the presidency. An NBC News poll from April found that 15 percent of voters don’t follow political news, and Donald Trump was winning them by 26 points.Yanna Krupnikov studies exactly this kind of voter. She’s a professor of communication and media at the University of Michigan and an author, with John Barry Ryan, of “The Other Divide: Polarization and Disengagement in American Politics.” The book examines how the chasm between the deeply involved and the less involved shapes politics in America. I’ve found it to be a helpful guide for understanding one of the most crucial dynamics emerging in this year’s election: the swing to Trump from President Biden among disengaged voters.In this conversation, we discuss how politically disengaged voters relate to politics; where they get their information about politics and how they form opinions; and whether major news events, like Trump’s recent conviction, might sway them.Mentioned:“The ‘Need for Chaos’ and Motivations to Share Hostile Political Rumors” by Michael Bang Petersen, Mathias Osmundsen and Kevin ArceneauxHooked by Markus Prior“The Political Influence of Lifestyle Influencers? Examining the Relationship Between Aspirational Social Media Use and Anti-Expert Attitudes and Beliefs” by Ariel Hasell and Sedona Chinn“One explanation for the 2024 election’s biggest mystery” by Eric LevitzBook Recommendations:What Goes Without Saying by Taylor N. Carlson and Jaime E. SettleThrough the Grapevine by Taylor N. CarlsonSorry I’m Late, I Didn’t Want to Come by Jessica PanThoughts? Guest suggestions? Email us at ezrakleinshow@nytimes.com.You can find transcripts (posted midday) and more episodes of “The Ezra Klein Show” at nytimes.com/ezra-klein-podcast. Book recommendations from all our guests are listed at https://www.nytimes.com/article/ezra-klein-show-book-recs.This episode of “The Ezra Klein Show” was produced by Annie Galvin. Fact-checking by Michelle Harris. Our senior engineer is Jeff Geld, with additional mixing by Efim Shapiro and Aman Sahota. Our senior editor is Claire Gordon. The show’s production team also includes Rollin Hu, Elias Isquith and Kristin Lin. Original music by Isaac Jones. Audience strategy by Kristina Samulewski and Shannon Busta. The executive producer of New York Times Opinion Audio is Annie-Rose Strasser. Special thanks to Sonia Herrero.