What were the central elements of the new frontier and the great society? why was johnson able to succeed where kennedy failed? what were the long-term results of the liberal legislation of 1964 to 1966?

New frontier and great society  was proposed as internal policy focused on wlefare social security. kennedy wasn't a full term president because of his assasination and during his presidcency congress was republican contrary to johnson who had congress on his side

An attractive economy.