Complex sentence: Goldwater notably won only in Southern states that had voted against Republican Richard Nixon in 1960, while not winning a single southern state which Nixon had carried, creating a complete inversion of the electoral pattern of the previous presidential election.
Split into simpler sentences: Goldwater notably won only in Southern states that had voted against Republican Richard Nixon in 1960, while not winning a single state that Nixon had carried. This was a complete inversion of the electoral pattern of the previous presidential election.