US Democratic presidential candidate Senator Barack Obama (D-IL) speaks to supporters at his Ohio and Texas primary election night rally in San Antonio

 
US Democratic presidential candidate Senator Barack Obama (D-IL) speaks to supporters at his Ohio and Texas primary election night rally in San Antonio
US Democratic presidential candidate Senator Barack Obama (D-IL) speaks to supporters at his Ohio and Texas primary election night rally in San Antonio, Texas March 4, 2008. REUTERS/Jim Young (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)