Barack Obama Pictures

Democratic U.S. Presidential nominee Sen. Barack Obama (D-IL) waves to the crowd after his speech 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 Win McNamee/Getty Images North America)

Democratic U.S. Presidential Candidate Sen. Barack Obama (D-IL) is seen on TV as he gives his acceptance speech during a convention watch party at a private residency August 28, 2008 in Alexandria, Virginia. Obama has officially accepted the nomination by the Democratic Party for the president of the United States. (Photo by Alex Wong/Getty Images North America)