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
Vice President of the United States Speaker of the House Carl Albert would have become Acting President when Nixon resigned, under the terms of the Presidential Succession Act of 1947. For much of its existence, the office of vice president was seen as little more than a minor position. John Adams, the first vice president, was the first of many frustrated by the "complete insignificance" of the office. To his wife Abigail Adams wrote, "My country has in its wisdom contrived for me the most insignificant office that ever the invention of man ... or his imagination contrived or his imagination conceived; and as I can