The Christian Right and the War on America by Chris Hedges.
Chapter 7, The New Class, page 140.
"The ties by Christian Right leaders such as Perkins with racist groups highlight the long ties between right-wing fundamentalists and American racist organizations, including the Klan, which had a chaplain assigned to each chapter. During the Depression, when many on the right and in corporate America were openly flirting with fascism, fundamentalist preachers such as Gerald B; Winrod and Gerald L. K. Smith fused national and Christian symbols to advocate the country's first crude from of Christo-fascism. Smith, who openly admired the Nazis, founded a group called the Christian Nationalist Crusade, whose magazine was The Cross and the Flag. The movement proclaimed that "Christian character is the basis of all real Americanism."
Christians would have you believe the Nazis and Hitler were atheists. I seriously doubt the percent of atheists among the Nazis were more than low single digits. You can be sure the rest were Christians of one sort or another. That's how effective Christian morality really is.