For decades, Americans have believed that the best way to end racial inequality is to end class inequality. But a landmark 30-year study is debunking that logic. Guests: Emily Badger, who writes about cities and urban policy for The Upshot; William O. Jawando, who worked in the Obama administration on My Brother’s Keeper, a mentoring initiative for black boys. For more information on today’s episode, visit nytimes.com/thedaily.

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