Via TNC, an excellent YouTube find:
In 1961 as part of Operation Coffee Cup, Ronald Reagan recorded a
                        long playing record as a paid spokesperson for the American Medical
                        Association called "Ronald Reagan speaks out against SOCIALIZED
                        MEDICINE", excerpts of which are provided here.
Reagan claimed
                        what eventually would become Medicare a few years later was being
                        pushed by liberals who were actually nothing other than Socialists,
                        would provide a "foot in the door" which would quickly lead to
                        government mandated and rationed health care, and would shortly lead to
                        a complete Socialist dictatorship.