Historical rankings of presidents of the United States 80% of Americans. A Gallup poll about presidential greatness taken February 2–5, 2011, asked 1,015 adults in the United States the following question: "Who do you regard as the greatest United States president?". In addition, "Other" received 1%, "None" received 1% and "No opinion" received 5%. These polls evaluate recent Presidents only. A Gallup poll taken on November 19–21, 2010, asked 1,037 Americans to say, based on what they know or remember about the nine most recent former Presidents, whether they approve or disapprove of how each handled his job in office. A Public Policy Polling poll taken between September
Religious affiliations of Presidents of the United States body. Protestants predominate, with Episcopalians and Presbyterians being the most prevalent. There have been four Nontrinitarian presidents, and a single Roman Catholic president (John F. Kennedy). No president thus far has been openly an atheist. However, it has been acknowledged that two US Presidents—Thomas Jefferson and Andrew Johnson—had no religious affiliation. Most presidents have been formal members of a particular church or religious body, and a specific affiliation can be assigned to every president from James A. Garfield on. For many earlier presidents, however, formal church membership was forestalled until they left office; and in several cases a president never