Quite incorrect. Buckley always strongly opposed Nelson Rockefeller. He backed Goldwater and, especially, Ronald Reagan.
Also, "RINO" is an acronym and thus should be all caps.
>>>Buckley always strongly opposed Nelson Rockefeller.
That may be true. But in his later years, he failed to call for spending cuts that would reverse FDR’s New Deal socialist policies. True conservatism demands a return to the type of small government policies that existed before 1913, before Woodrow Wilson and FDR introduced creeping socialism to America.