Democratic presidential candidate Barack Obama addresses supporters during his election night victory rally at Grant Park on November 4, 2008 in Chicago, Illinois. Americans emphatically elected Obama as their first black president in a transformational election which will reshape US politics and the US role on the world stage. Getty Images logo Getty Images 43 months ago

Democratic presidential candidate Barack Obama addresses supporters during his election night victory rally at Grant Park on November 4, 2008 in Chicago, Illinois. Americans emphatically elected Obama as their first black president in a transformational election which will reshape US politics and the US role on the world stage.