The number of U.S. presidents is a debated issue due to historical complexities. Under the Articles of Confederation, Samuel Huntington, Samuel Johnston, Thomas McKean, and John Hanson held the role before George Washington. Grover Cleveland’s non-consecutive terms further complicate counting. Depending on the method, Donald Trump could be considered the 44th, 45th, 46th, 56th, 67th, or 78th president.