Presumptive Democratic Presidential candidate U.S. Sen. Barack Obama (D-IL) speaks during a campaign event at the Patrick Henry Community College August 20, 2008 in Martinsville, Virginia. By Joe Raedle/Getty.
Presumptive Democratic Presidential candidate U.S. Sen. Barack Obama (D-IL) speaks during a campaign event at the Patrick Henry Community College August 20, 2008 in Martinsville, Virginia. By Joe Raedle/Getty.