absence. On February 8, 1933, Vice President Charles Curtis announced the election of his successor, House Speaker John Nance Garner, while Garner was seated next to him on the House . Most recently, on January 6, 2021, Vice President Mike Pence announced the election of his successor, Kamala Harris. Successor to the U.S. president Article II, Section 1, Clause 6 stipulates that the vice president takes over the "powers and duties" of the presidency in the event of a president's removal, death, resignation, or inability. Even so, it does not clearly state whether the vice president became the president of the United States or simply acted as president in a case of succession. Debate records from the 1787 Constitutional Convention, along with various participants' later writings on the subject, show that the framers of the Constitution intended that the vice president would temporarily exercise the powers and duties of the office in the event of a president's death, disability or removal, but not actually become the president of the United States in their own right. This understanding was first tested in 1841, following the death of President William Henry Harrison, only days into his term. Harrison's vice president, John Tyler, asserted that he had succeeded to the office of president, not just to its powers and duties. He took the presidential oath of office, and declined to acknowledge documents referring to him as "Acting President". Although some in Congress denounced Tyler's claim as a violation of the Constitution, he adhered to his position. His view ultimately prevailed as both the Senate and House voted to acknowledge him as president. The "Tyler Precedent" that a vice president assumes the full title and role of president upon the death of their predecessor was made part of the Constitution through the Twenty-fifth Amendment in 1967. Altogether, nine vice presidents have succeeded to the presidency intra-term. In addition to Tyler, they are Millard Fillmore, Andrew Johnson, Chester A. Arthur, Theodore Roosevelt, Calvin Coolidge, Harry S. Truman, Lyndon B. Johnson, and Gerald Ford. Four sitting vice presidents have been elected president: John Adams in 1796, Thomas Jefferson in 1800, Martin Van Buren in 1836, and George H. W. Bush in 1988. Likewise, two former vice presidents have won the presidency, Richard Nixon in 1968 and Joe Biden in 2020. Also, in recent decades three incumbent vice presidents lost in close elections: Nixon in 1960, Hubert