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 on social media many tweets are sent in 8 minutes as were sent on all of Election Day 2008. As of May 25, 2010, 48% of Obama's followers resided outside of the United States and 47% were female. At that time, the top five industries in which his followers were employed were Measuring social influence has become a new consulting career opportunity. According to discussants on the "PBS NewsHour", Obama has 5000 times as much social media influence as Romney; however, according to "The Hill", Obama only has 12 times as much social media influence. The official website of Barack Obama is barackobama.com.