Eugene Robinson, Washington Post
Republicans say they're eager for the presidential campaign to turn away from "distractions" and focus instead on the economy. Someone should warn them that if they're not careful, they might get their wish.It is true that voters' unhappiness with high unemployment and slow growth poses a challenge for President Obama as he seeks re-election. But for Mitt Romney and the GOP to take advantage of this potential opening, they'll have to do more than chant the word "economy" like a mantra. They have to make the case that their policies will work better than...