Republican Hopefuls Target Middle Class Uncertainty As Economy Improves

(Reuters) - Facing a recovering economy and a tumbling jobless rate, Republican presidential candidates honing their economic message are trying tap into a lingering sense of insecurity among Americans seven years after the global financial crisis. And some are striking a sympathetic tone with lower-income workers in a way that contrasts with four years ago when Mitt Romney struggled to overcome perceptions that he was largely the candidate of the wealthiest Americans. Then, Republican nominee R...