Science Advisor to the President War II by President Franklin Delano Roosevelt. Vannevar Bush chaired this office through Roosevelt's death in 1945, and continued under Roosevelt's successor Harry S. Truman until 1951. After the war, President Harry S. Truman replaced the OSRD with the Science Advisory Committee in 1951. The office was moved to the White House on November 21, 1957, by President Dwight D. Eisenhower to provide advice and recommendation in response to the Space Race started by the USSR's launch of the first artificial Earth satellite, Sputnik 1. President Richard M. Nixon eliminated the PSAC in 1973, rather than appointing a replacement for
President of Russia terms. On 7 May 2012, Vladimir Putin became the fourth and current president. A candidate for office must be a citizen of the Russian Federation who is at least 35 years old and has "permanently resided" in Russia for at least 10 years. The Constitution of Russia limits the election of one person to the Presidency to two consecutive terms. Since the constitution contains no ruling on a total number of terms that a President may serve, a former president may seek re-election after sitting out one complete term. The election of the President is mainly regulated by the Presidential