Dan Rather, the former CBS news anchor, talks about his new book "What Unites Us: Reflections on Patriotism," politics, media and why he's still such a hit with Millennials.

Rep. Frederica Wilson on Sgt. La David Johnson

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.