The great Yale church historian Jaroslav Pelikan once called the Roman Catholic Church ʺthe most formidable religious institution in the history of America and of the world.ʺ1 One distinguishing doctrinal feature of Catholicism is the claim that the pope is the official leader of Christendom. Of the three branches of Christendom (Orthodoxy, Catholicism, Protestantism), Catholics uniquely view the pope as sitting…
