"The Constitution of that time contained no Twenty-fifth Amendment to lay out procedures governing the vice president's actions when the chief executive became disabled or when there was a vacancy before the end of the incumbent's term. The document provided only that the 'Powers and Duties of the said Office... shall devolve on the Vice President... [who] shall act accordingly, until the Disability be removed, or a President shall be elected.' In another section, the Constitution referred to the vice president 'when he shall exercise the Office of President of the United States.'" John Tyler, Tenth Vice President (1841). Secretary of the Senate, United States Government. Last accessed 2007-04-01.