While polls vary on how tight the presidential race is, the surveys taken as a whole show an unmistakable trend for Barack ObamaBarack Hussein ObamaMullen: 'National security issues do not wait' for presidential transitions Is Trump headed to another campaign or to a courtroom? With the Chang'e 5 launch, China takes a giant leap forward in the race to the moon MORE. In fact, the last 111 national polls have shown the Democrat ahead of John McCain, MSNBC's Domenico Montanaro notes.

The last poll that didn't show an Obama lead was a Gallup poll taken Sept. 22-24. It had the race tied at 46 percent.

The Pollster.com trend line of all national polls has Obama ahead 51.6 percent to 44.5 percent.