President Trump crusades against mail-in voting, Roy Wood Jr. examines the origins of citizen's arrest laws, and "This Is Us" star Sterling K. Brown discusses One Million Truths.

Dulce Sloan and singer Margo Price react to sexist attacks on Kamala Harris, Kenya Barris talks about his shows "Black-ish" and "#blackAF," and author Isabel Wilkerson discusses "Caste."