Nelson Rockefeller as administrator of Rockefeller Center in Manhattan, New York. Rockefeller was a Republican who was often considered to be liberal, progressive, or moderate. In an agreement that was termed the Treaty of Fifth Avenue, Rockefeller persuaded then-Vice President Richard Nixon to alter the Republican Party platform just before the 1960 Republican Convention. In his time, liberals in the Republican Party were called "Rockefeller Republicans". As Governor of New York from 1959 to 1973, Rockefeller's achievements included the expansion of the State University of New York, efforts to protect the environment, the construction of the Governor Nelson A. Rockefeller Empire State
Nelson Rockefeller 1935–40. From 1932 to 1979 he served as a trustee of the Museum of Modern Art, where he also served as treasurer, 1935–39, and president, 1939–41 and 1946–53. He and his four brothers established the Rockefeller Brothers Fund, a philanthropy, in 1940, where he served as trustee, 1940–75 and 1977–79, and as president in 1956. Rockefeller was a patient of famous psychic Edgar Cayce. Rockefeller served as a member of the Westchester County Board of Health, 1933–53. His service with Creole Petroleum led to his deep, lifelong interest in Latin America. He became fluent in the Spanish language. In 1940,