Christian Realism is a philosophical perspective developed by the theologian and public intellectual Reinhold Niebuhr in the late 1940s and early 1950s. Niebuhr argued that the Kingdom of God cannot be realized on earth because of the innately corrupt tendencies of society. Due to the injustices that arise on earth, a person is therefore forced to compromise the ideal of the kingdom of heaven on earth. Niebuhr argued that human perfectibility was an illusion, highlighting the sinfulness of humanity at a time when the world was confronted by the horrors of experiences such World War II, the reigns of both Adolf Hitler and Joseph Stalin, and the Holocaust. The movement was in part a reaction to the Social Gospel movement. Numerous American political figures have been influenced by Christian