There is the possibility, of course, that racial prejudice will play a smaller role in 2012 than it did in 2008, now that the country is familiar with a black president. Some recent events, though, suggest otherwise. I mentioned earlier that the rate of racially charged searches in West Virginia was No. 1 in the country and that the state showed a strong aversion to Mr. Obama in 2008. It recently held its Democratic presidential primary, in which Mr. Obama was challenged by a convicted felon. The felon, who is white, won 41 percent of the vote.