2008 Democratic National Convention: Day 4
A man walks on the field on day four of the Democratic National Convention (DNC) at Invesco Field at Mile High August 28, 2008 in Denver, Colorado. U.S. Sen. Barack Obama (D-IL) is the first African-American to be officially nominated as a candidate for U.S. president by a major party.
( - Photo by Doug Pensinger/Getty Images North America)











