Kathleen “Kick” Kennedy was the fourth child and second daughter of Joseph and Rose Kennedy. Always her father’s favorite, Kick spent her adolescence in London while he served as Ambassador to the United Kingdom. She quickly became a society it-girl and eventually married one of the most eligible bachelors in England — much to the chagrin of her very Catholic mother. We’re joined by Paula Byrne, author of Kick: The True Story of JFK's Sister and the Heir to Chatsworth, to discuss Kick’s life and tragic death, her twin-like relationship with JFK, and her complicated legacy.