In this groundbreaking book, political historian Paul Kengor draws upon President Reagan's legacy of speeches and correspondence, and the memories of those who knew him well, to reveal a man whose Christian faith remained deep and consistent through every stage of his life. But it was in his lifelong battle against communism - first in Hollywood, then on the political stage - that Reagan's Christian beliefs had their most profound effect. Appalled by the religious repression and state-mandated atheism of Bolshevik Marxism, Reagan felt called by a sense of personal mission to confront the USSR. Inspired by influences as diverse as C.S. Lewis, Whittaker Chambers, and Aleksandr Solzhenitsyn, he waged an openly spiritual campaign against communism, insisting that religious freedom was the bedrock of personal liberty. From a church classroom in 1920s Dixon, Illinois, to his triumphant mission to Moscow in 1988, Ronald Reagan was both political leader and spiritual crusader. God and Ronald Reagan deepens immeasurably our understanding of how these twin missions shaped his presidency - and changed the world.