WASHINGTON – SEPTEMBER 16: U.S. President Barack Obama jokingly jousts during a fencing demonstration on the South Lawn of the White House promoting the city of Chicago’s bid for the 2016 Summer Olympics September 16, 2009 in Washington, DC. Obama joined Chicago Mayor Richard Daley, members of the USOC, and representatives from the Chicago 2016 group during the event. Also pictured (white top) is Olympic athlete Jackie Joyner Kersee. (Photo by Win McNamee/Getty Images)