Arthur Brooks, president of the American Enterprise Institute, discusses the moral mistakes of the Trump administration, populism and why he's leaving his job.

How Robert Runcie helped the Parkland generation find their voice

Opinion writer Jonathan Capehart talks with newsmakers who challenge your ideas on politics, and explore how race, religion, age, gender and cultural identity are redrawing the lines that both divide and unite America. "Capehart" is a podcast from Washington Post Opinions, with conversations adapted from Washington Post Live events.