How did the presidential election of 1876 affect african americans in the south? a. it brought about a continuation of reconstruction, which allowed the complete expression of african american rights. b. it brought about the end of reconstruction, which allowed southern whites to greatly restrict african american rights. c. it brought andrew johnson to the white house, which ensured federal resistance to african american rights. d. it brought ulysses s. grant to the white house, which ensured federal protection of african american rights.