Democratic Rep. Sanford Bishop’s once-safe hold on his southwest Georgia district has slipped away less than a month before Election Day, and the contest is now a statistical tie, according to a new survey from the campaign of state Rep. Mike Keown (R). Bishop led Keown 47 percent to 46 percent with 7 percent undecided. The 1-point difference was well within the survey’s 4.9-point margin of error. Keown’s poll, which was conducted by the GOP firm Public Opinion Strategies, was in the field Sept. 27 and 28 and surveyed 400 likely 2nd district voters. The new poll came four weeks...