As Mitt Romney ends a tough week by releasing another year of tax returns, we look at the effects of the leaked “47 percent” video on his campaign. Also, we sift through the recent onslaught of polls in the countdown to November. Joining Gwen: John Harwood, CNBC and New York Times; Gloria Borger, CNN; John Dickerson, Slate Magazine and CBS News; Sam Youngman of Reuters.