Mr Obama took a battering in recent weeks, under fire from Mrs Clinton and from those who thought he disparaged small-town values at a fundraiser in San Francisco.

• 这几周，面对克林顿夫人，还有那些觉得他在三藩筹款时的言论诋毁了美国小镇价值人士的狂轰滥炸，奥巴马可以说是备受打击。