The oath of office of the president of the United States is the oath or affirmation that the president of the United States takes upon assuming office. The wording of the oath is specified in Article II, Section One, Clause 8, of the United States Constitution, and a new president must take it before exercising or carrying out any official powers or duties.
Lyndon Johnson being sworn in as next president, two hours after President John F. Kennedy's assassination
Franklin D. Roosevelt being administered the oath of office by Chief Justice Charles Evans Hughes on March 4, 1933, the first of Roosevelt's four presidential inaugurations.
George H. W. Bush being administered the oath of office by Chief Justice William Rehnquist on January 20, 1989.
Barack Obama being administered the oath of office by Chief Justice John Roberts for the second time, on January 21, 2009.
The vice president of the United States (VPOTUS) is the second-highest officer in the executive branch of the U.S. federal government, after the president of the United States, and ranks first in the presidential line of succession. The vice president is also an officer in the legislative branch, as the president of the Senate. In this capacity, the vice president is empowered to preside over the United States Senate, but may not vote except to cast a tie-breaking vote. The vice president is indirectly elected together with the president to a four-year term of office by the people of the United States through the Electoral College. Since the passage of the Twenty-fifth Amendment to the US Constitution, the vice president may also be appointed by the president to fill a vacancy, via majority confirmation by both the Senate and the House.
John Adams, the first vice president of the United States
Though prominent as a Missouri Senator, Harry Truman had been vice president only three months when he became president; he was never informed of Franklin Roosevelt's war or postwar policies while serving as vice president.
1888 illustration of John Tyler receiving the news of President William Henry Harrison's death from Chief Clerk of the State Department Fletcher Webster