Even on the Kennedy Scale, Robert F. Kennedy Jr's sexual dalliances are legendary — as in the Legend of Sleepy Hollow, the Legend of Legend of Hell House, or the Legend of Chupacabra. It's all awful and somebody ends up dead. Kennedy's father, Bobby, and uncles, Jack and Ted, were also notorious lechers. Cruel comparisons were drawn — sometimes by Democrats — between Bill Clinton's conquests like Paula Jones and Marylin Monroe. Monroe was rumored to have been passed around between JFK and RFK, perhaps contributing to her untimely death by a barbiturate overdose in 1962. RFK is believed to...