President Barack Obama, right, is greeted by musician Jennifer Hudson, left, and Chicago Mayor Rahm Emanuel before speaking at the Aragon Ballroom, Wednesday, Aug. 3, 2011, in Chicago,  at a fundraiser on the eve of his 50th birthday. &#40;AP Photo&#47;Carolyn Kaster&#41; <span class=meta>(AP Photo&#47; Carolyn Kaster)</span>
{}