Swing states poll: Amid barrage of ads, Obama has edge

… In a new USA TODAY/Gallup Poll of swing states, an overwhelming majority of voters remember seeing campaign ads over the past month; most voters in other states say they haven’t. In the battlegrounds, one in 12 say the commercials have changed their minds about President Obama or Republican Mitt Romney — a difference on the margins, but one that could prove crucial in a close race. At this point, Obama is the clear winner in the ad wars. [cont.]

Susan Page, USA Today