For the latest installment of our ongoing Full Bio series, we spoke with John A. Farrell, author of the new biography, Ted Kennedy: A Life, about the youngest Kennedy boy, and former Massachusetts senator and presidential candidate. Here you can listen to all four parts of our interview.

Ted Kennedy, Part 1: The power of the Kennedy name in America, as well as Ted's childhood, education, and military service.Ted Kennedy, Part 2: Kennedy's entrance into politics, his views on immigration and the war in Vietnam, and how he handled the assassinations of his brothers.Ted Kennedy, Part 3: Kennedy's personal demons and controversies, including his excessive drinking, and the infamous Chappaquiddick incident which resulted in the death of Kennedy's acquaintance, Mary Jo Kopechne.Ted Kennedy, Part 4: Kennedy's run for president in 1980, his famous convention speeches in both 1980 and 2008, and his battle with brain cancer towards the end of his life.