Presumptive U.S. Democratic presidential candidate Barack Obama waves to the audience during a campaign stop at Kettering University in Flint

 
Presumptive U.S. Democratic presidential candidate Barack Obama waves to the audience during a campaign stop at Kettering University in Flint
Presumptive U.S. Democratic presidential candidate Senator Barack Obama (D-IL) waves to the audience during a campaign stop at Kettering University in Flint, Michigan June 16, 2008. REUTERS/Rebecca Cook (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)