article_snippet: It is the key sign of American presidency and power.
article_snippet: Obama in British Prime Minister David Cameron 'Oval Office' aboard Air Force One; here British Prime Minister David Cameron is pictured signing a bill that will give the Congressional Gold Medal to the Foot Soldiers who Participated in Bloody Sunday in Selma, Alabama .
article_snippet: Pictured here are the president with the Obamas and others as the group flew to Nelson Mandela's memorial on Air Force One back in 2013.
article_snippet: Obama talks with US Senator Lamar Alexander aboard Air Force One during a flight May back in 2011 from Memphis, Tennessee, to Joint Base Andrews, Maryland; there is casual as well as office space for all sorts of discussions .
article_snippet: The US Presidenthas long been a symbol of American power and the setting for historic moments, including the somber 1963 ceremony when Lyndon Johnson took the oath of office on board -- hours after the assassination of John F. Kennedy.
article_snippet: The US President is pictured enjoying a joke with former leader George Bush during a flight on board Air Force One .
article_snippet: Following the assassination of John F. Kennedy (pictured), Lyndon Johnson took the oath of office on board Air Force One .