By the 1950s, most Republicans had accommodated themselves to New Deal–era health and safety regulations, and the Northeast and the Midwest produced scores of Republicans who were on the liberal end of the spectrum when it came to issues like conservation and civil rights. Southerners, meanwhile, constituted one of the Democratic Party’s most powerful blocs, combining a deep-rooted cultural conservatism with an adamant refusal to recognize the rights of African Americans, who made up a big share of their constituency.
