Does racial bias fuel Obama foes? How to tell? Is it because he's black? The question of whether race fuels opposition to President Barack Obama has become one of the most divisive topics of the election. It is sowing anger and frustration among conservatives who are labeled racist simply for opposing Obama's policies and liberals who see no other explanation for such deep dislike of the president. It is an accusation almost impossible to prove, yet it remains inseparable from the African-American experience. The idea, which seemed to die in 2008 when Obama became the first black president, is now...