Several prominent American Leaders have been influenced by Alinsky's teachings, including Ed Chambers, Tom Gaudette, Ernesto Cortes, Michael Gecan, Wade Rathke, and Patrick Crowley. Alinsky is often credited with laying the foundation for the grassroots political organizing that dominated the 1960s. Jack Newfield, writing in New York magazine, included Alinsky among "the purest Avatars of the populist movement", along with Ralph Nader, Cesar Chavez, and Jesse Jackson.