Racism, naturally, plays a part in the conversation. "I've never forgotten that he is a smart, articulate black man with a smart, articulate black wife," says Linda Wright, 34, a nurse's assistant from Houston."You think white people were just going to turn over the keys to the most important job in the land without a fight?" The overriding feeling is apprehension, a vague fear of losing something people thought was theirs to keep. "My kids love Obama and they think it's so obvious he should be the president," says actor D. L. Hughley. "I was just honest in saying life...