Another poll, another close result between President Obama and Mitt Romney. Obama leads by a single point -- 49%-48% -- in the latest Politico/George Washington University Battleground Poll released Monday morning, well within the margin of error. On the other hand, Romney leads 50%-48% in the poll's 10 top "battleground states:" Colorado, Florida, Iowa, Michigan, Nevada, New Hampshire, North Carolina, Ohio, Virginia and Wisconsin.