Rockefeller Republicanism has been described as the last phase of the "Eastern Establishment" of the GOP that had been led by New York governor Thomas E. Dewey. The group's powerful role in the GOP came under heavy attack during the 1964 primary campaign between Rockefeller and Barry Goldwater. At a point before the California primary, political operative Stuart Spencer called on Rockefeller to "summon that fabled nexus of money, influence, and condescension known as the Eastern Establishment". Rockefeller replied, "You are looking at it, buddy, I am all that is left".
