Mitt Romney is up six points on Gallup’s seven-day likely-voter tracker, 51–45. Romney is also winning the seven-day registered-voters poll, 48–46. These statistics are there to be broken, but it is worth pointing out for the record that, in the history of Gallup, no presidential candidate has ever been over 50 percent in mid-October and gone on to lose.
The seven-day RCP average has Romney up 0.6 percentage points. In 2008, the RCP average had Obama winning by 6.7 percentage points, and in 2004, Bush was winning by 4.