VC-137C SAM 26000 VC-137C SAM 26000 SAM 26000 was the first of two Boeing VC-137C United States Air Force aircraft specifically configured and maintained for use by the President of the United States. It used the callsign Air Force One when the President was on board, "SAM 26000" otherwise. A VC-137C with Air Force serial number "62-6000", "SAM 26000" was a customized Boeing 707. It entered service in 1962 during the administration of John F. Kennedy and was replaced in Presidential service in 1972 but kept as a backup. The aircraft was finally retired in 1998 and is now on display at the
Barack Obama 2015, that inmates sentenced in US federal custody declined by 5% under Obama. This is the largest decline in sentenced inmates in US federal custody since Democratic President Jimmy Carter. By contrast, the federal prison population increased significantly under presidents Ronald Reagan, George H. W. Bush, Bill Clinton, and George W. Bush. Obama left office in January 2017 with a 60% approval rating. A 2017 C-SPAN "Presidential Historians Survey" ranked Obama as the 12th-best US president. The Barack Obama Presidential Center is Obama's planned presidential library. It will be hosted by the University of Chicago and located in Jackson Park