Robert Francis Kennedy Jr. (born January 17, 1954) is an American environmental lawyer and author who is known for promoting anti-vaccine propaganda and conspiracy theories. Kennedy is a son of U.S. senator Robert F. Kennedy and a nephew of President John F. Kennedy. He helped found the non-profit environmental group Waterkeeper Alliance in 1999 and has served as the president of its board. Kennedy has co-hosted Ring of Fire, a nationally syndicated radio program, and written or edited ten books, including two New York Times bestsellers.