Spanning the decades from World War II to the 2008 presidential campaign, A God in Ruins is the unforgettable story of Quinn Patrick O'Connell, an honest, principled, and courageous man on the brink of becoming the second Irish Catholic President of the United States. In an era morally unmoored, rife with armed separatists and fundamentalist zealotry, Quinn, the last great liberal of the Rocky Mountains, emerges as America's hope to reclaim its great past and its promises of the future. But Quinn is a man with an explosive secret that can shatter his political ambitions and threaten his life, a secret buried for over a half century that even he does not know.

Returning home at the end of World War II a decorated and wounded hero, Daniel Timothy O'Connell had moved his young wife, Siobhan, from the crowded streets of Brooklyn to the golden mountains of Colorado. Building a successful life as cattle ranchers, Daniel and Siobhan had everything they wanted, except a child. Desperate, they turned to the Church and adopted a beautiful three-year-old of mysterious parentage, a charming little boy they named Quinn Patrick.

In riveting prose, Leon Uris unfolds Quinn's life as he matures from a restless youth into a brave Marine undertaking a deadly undercover mission, and finally, into an earnest, intelligent, and thoughtful leader willing to take on the most vicious and malevolently destructive forces threatening the country.