Skeptics might rationalize that Mitt Romney received a scant 6 percent of the black vote in 2012 only because African Americans would naturally favor one of their own. But since 1964, no Republican presidential candidate has attracted more than 15 percent of the black electorate, and few GOP candidates for other offices have fared much better. No segment of the American electorate is more reliably Democratic than African Americans. The GOP, meanwhile, remains nearly an all-white party.

In this path-breaking book, historian Timothy Thurber illuminates the deep roots of this gulf by...

Skeptics might rationalize that Mitt Romney received a scant 6 percent of the black vote in 2012 only because African Americans would naturally favor one of their own. But since 1964, no Republican presidential candidate has attracted more than 15 percent of the black electorate, and few GOP candidates for other offices have fared much better. No segment of the American electorate is more reliably Democratic than African Americans. The GOP, meanwhile, remains nearly an all-white party.In this path-breaking book, historian Timothy Thurber illuminates the deep roots of this gulf by exploring...