Acting President of the United States On April 4, 1841, only one month after his inauguration, President William Henry Harrison died. He was the first U.S. president to die in office. Afterward, a constitutional crisis ensued over the Constitution's ambiguous presidential succession provision (). Shortly after Harrison's death, his Cabinet met and decided that Vice President John Tyler would assume the responsibilities of presidency under the title "Vice-President acting President". Instead of accepting the Cabinet's proposed title, however, Tyler asserted that the Constitution gave him full and unqualified powers of the office and had himself sworn in immediately as President, setting a critical precedent for an
President of Singapore the office of president assumes office on the day his predecessor ceases to hold office or, if the office is vacant, on the day following his election. Upon his assumption of office, the President is required to take and subscribe in the presence of the Chief Justice or of another Justice of the Supreme Court the Oath of Office, which states: Once elected, the President shall: The Parliament of Singapore is required to provide a civil list for the maintenance of the President, and it does so by way of the Civil List and Gratuity Act. With effect from 17