GREENSBORO, NC - AUGUST 20: Presumptive Democratic Presidential candidate U.S. Sen. Barack Obama (D-IL) pays for corn he bought GREENSBORO, NC - AUGUST 20: Presumptive Democratic Presidential candidate U.S. Sen. Barack Obama (D-IL) pays for corn he bought during a visit to the Greensboro Farmers Curb Market August 20, 2008 in Greensboro, North Carolina. Obama is expected to announce his Vice Presidential candidate before the start of the Democratic National Convention on August 25th. (Photo by Joe Raedle/Getty Images) | |
