U.S. Rep. Jack Kingston has taken an 11-point lead over David Perdue, six weeks before their Republican runoff for a U.S. Senate seat.Those are among the results of a SurveyUSA poll taken for WXIA-TV in Atlanta. The pollsters questioned 2,200 Georgians June 3-5.Among their findings:Kingston leads Perdue, a former Reebok CEO, by 52 percent to 41 percent in their July 22 runoff. The winner faces...