DNC Night 2: Dem Roll Call Turns Up | Pritzker's Billion Dollar Zinger | It's Doug O'Clock!

Stephen Colbert welcomes an energetic crowd to Chicago's Auditorium Theatre following the second night of the Democratic National Convention where delegates danced through a raucous musical roll call and listened to speakers including Illinois Governor J.B. Pritzker who hit Trump right in the pocketbook, and Second Gentleman Douglas Emhoff who told the story of meeting his wife, VP Kamala Harris.