Senator Barack Obama speaks at his Pennsylvania primary election night rally held at Roberts Municipal Stadium in Evansville

 
Senator Barack Obama speaks at his Pennsylvania primary election night rally held at Roberts Municipal Stadium in Evansville
US Democratic presidential candidate Senator Barack Obama (D-IL) speaks at his Pennsylvania primary election night rally held at Roberts Municipal Stadium in Evansville, Indiana, April 22, 2008. Indiana will hold one of the next Democratic primary elections on May 6. REUTERS/John Gress (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)