CHICAGO - JUNE 8:  Democratic presidential candidate Sen. Barack Obama's (D-IL) wife Michelle Obama listens to him speak at a fundraiser in the Great Hall at Union Station June 8, 2007 in Chicago, Illinois. The event called "GenBO (Generation Barack Obama) After Hours with Barack and Michelle Obama" had a suggested donation of $100. Getty Images logo Getty Images 25 months ago

CHICAGO - JUNE 8: Democratic presidential candidate Sen. Barack Obama's (D-IL) wife Michelle Obama listens to him speak at a fundraiser in the Great Hall at Union Station June 8, 2007 in Chicago, Illinois. The event called "GenBO (Generation Barack Obama) After Hours with Barack and Michelle Obama" had a suggested donation of $100.