By legitimizing bigotry and redefining so-called American values, a revived Klan in the 1920s left a toxic legacy that demands reexamination today. "A new Ku Klux Klan arose in the early 1920s, a less violent but equally virulent descendant of the relatively small, terrorist Klan of the 1870s. Unknown to most Americans today, this 'second Klan' largely flourished above the Mason-Dixon Line--its army of four-to-six-million members spanning the continent...

"Why did so many Evangelicals turn out to vote for Donald Trump, a serial philanderer with questionable conservative credentials who seems to defy Christian values with his every utterance? To a reporter like Sarah Posner, who has been covering the religious right for decades, the answer turns out to be far more intuitive than one might think. In this taut and meticulously reported inquiry, Posner digs deep into the radical history of the religious...