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 the Republic of Texas break from Mexico. The authority and responsibilities of the president was similar to that of the President of the United States: to serve the people of Texas, and to serve as the head of the military and the state. These were detailed in the Constitution of the Republic of Texas of 1836. The Constitution specified a term of two years for the first elected president (Sam Houston) and terms of three years thereafter; the president could not succeed himself, but there were otherwise no term limits. The president was elected separately from the vice president, by popular vote, and there