Keri Russell and Debora Cahn chat with ET’s Cassie DiLaura about ‘The Diplomat’ season 3, now streaming on Netflix. The actress reacts to the season’s big twist and cliffhanger ending. The two also open up about Alison Janney and Bradley Witford’s ‘The West Wing’ reunion on the show and if more stars from the long-running political drama could pop up in the future.
