" Southern politics since World War II has not been normal. The key political institutions of the South were swept away with the end of de jure segregation. The essential rationale for the peculiar politics of the solid South had been to disfranchise and disempower black voters, and institutions created to limit black participation did so with remarkable effectiveness. As late as March 1965, only 7% of eligible black voters in Mississippi were registered. "

― , Partisan Hearts and Minds: Political Parties and the Social Identities of Voters