Presidents of the United States on U.S. postage stamps (1841–1845) and the first to succeed to the office following the death of a predecessor. Tyler assumed office when President William Henry Harrison died only 32 days into his term as president. James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th President of the United States (1845–1849). Polk was born in North Carolina. He later lived in and became Governor of the state of Tennessee. A Democrat, Polk served as Speaker of the House (1835–1839) and Governor of Tennessee (1839–1841) before becoming president. Polk was an ardent supporter of Andrew Jackson. Polk was considered the last
Science Advisor to the President until 1973. Nixon terminated the committee rather than appointing a replacement for his advisor who had resigned. The US Congress established the Office of Science and Technology Policy in 1976, re-establishing Presidential Science Advisors to the present day. In July 2018, President Donald Trump nominated meteorologist Kelvin Droegemeier for the position. On September 5, 2018, the Senate Committee on Commerce, Science and Transportation voted unanimously to approve Droegemeier's nomination, but he has not yet been confirmed by a vote of the full Senate. The OSTP evolved out of the "'Office of Scientific Research and Development" created in 1941 during World