In another, not so distant, era, a white candidate like Hillary Clinton could simply have used race as a way to portray her black opponent as being beyond the mainstream.

• 不远处的选战另一端，白人候选者如希拉里-克林顿者，本来可以轻易地拿种族来说事，将她的黑人对手描绘成主流外人士。