UNITY 2008 Presidential Forum (11 images)

Presumptive Democratic presidential nominee Sen. Barack Obama (D-IL) answers questions at a presidential candidate forum at the UNITY 2008 Journalists of Color conference in Chicago on July 27, 2008. Obama returned Saturday from a week-long trip to the middle east and Europe. (UPI Photo/Brian Kersey)

Presumptive Democratic presidential nominee Sen. Barack Obama (D-IL) (L) shakes hands with hosts Ramesh Ratnesar (R) of Time and Suzanne Malveaux of CNN after answering questions at a presidential candidate forum at the UNITY 2008 Journalists of Color conference in Chicago on July 27, 2008. Obama returned Saturday from a week-long trip to the middle east and Europe. (UPI Photo/Brian Kersey)

Presumptive Democratic presidential nominee Sen. Barack Obama (D-IL) answers questions at a presidential candidate forum at the UNITY 2008 Journalists of Color conference in Chicago on July 27, 2008. Obama returned Saturday from a week-long trip to the middle east and Europe. (UPI Photo/Brian Kersey)

Presumptive Democratic Presidential Nominee Sen. Barack Obama (D-IL) (L) answers questions at a presidential candidates forum at the UNITY 2008 Journalists of Color conference in Chicago on July 27, 2008. Obama returned Saturday from a week-long trip to the middle east and Europe. (UPI Photo/Brian Kersey)