On today’s show: We’ll get an update on the Democratic National Convention! And Ta-Nehisi Coates looks at the role race is playing in this year’s presidential campaign. Gretchen Rubin tells us about her project to make her home a happier place. Emma Straub talks about her new novel, Laura Lamont’s Life in Pictures. Plus, Paul Tough looks at why children’s success depends less on intelligence and more on skills like curiosity, optimism, and self-control.