The United States a Christian Nation provides further reflections from the Associate Justice of the Supreme Court who wrote the majority opinion on February 29, 1892 (Holy Trinity vs. The United States), calling America a "Christian nation." Providing not only historical evidence for his opinion, Justice David Brewer sets out to provide additional insight into the way America can maintain greatness through the influence of Christianity. Contrary to the liberal desire to deny Christianity any social influence, Justice Brewer insists that only through the use of Christian principles is it possible for America to maintain its greatness.