America's birthday this year comes at a moment when its history is being debated, so we're bringing back this episode with Ty Seidule, author of "Robert E. Lee and Me: A Southerner's Reckoning with the Myth of the Lost Cause." Original air date: May 18.

Robin DiAngelo explains why White progressives have such a hard time confronting racism

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.