Final answer:
The nature of the question is rooted in the arts, specifically a television series, and does not relate to the historical events of the 2008 Democratic party's nomination for president.
Step-by-step explanation:
The question about which race is on Dwight's forehead refers to an episode titled "Diversity Day" from the U.S. television series The Office. This is not a question that pertains to historical events or political campaigns such as the Democratic party's nomination for president in 2008. However, the 2008 Democratic campaign was significant in addressing issues of race and gender, with Barack Obama, a mixed-race man, and Hillary Clinton, a white woman, directly discussing their identities. Obama's speech on race highlighted the importance of moving beyond racial wounds, while Clinton's concession speech mentioned the eighteen million cracks her campaign made in the glass ceiling, symbolizing progress in gender equality.