The walloping lead held by Barack Obama has shrunk, according to a new AP presidential poll. According to the Associated Press, the two presidential candidates are now neck and neck, as McCain gains votes from white people and people earning less than $50,000 per year. Looks like the dumbos actually fell for the Joe the Plumber schtick.

The Associated Press reports:

The presidential race tightened after the final debate, with John McCain gaining among whites and people earning less than $50,000, according to an Associated Press-GfK poll that shows McCain and Barack Obama essentially running even among likely voters in the election homestretch…

Obama and McCain were essentially tied among likely voters in the latest George Washington University Battleground Poll, conducted by Republican strategist Ed Goeas and Democratic pollster Celinda Lake. In other surveys focusing on likely voters, a Washington Post-ABC News poll showed Obama up by 9 percentage points, while a poll by the nonpartisan Pew Research Center had Obama leading by 14. A Wall Street Journal/NBC News poll, among the broader category of people registered to vote, found Obama ahead by 10 points.

Polls are snapshots of highly fluid campaigns. In this case, there is a margin of error of plus or minus 3.5 percentage points; that means Obama could be ahead by as many as 8 points or down by as many as 6. There are many reasons why polls differ, including methods of estimating likely voters and the wording of questions.

So if you were planning on skipping out on voting because the end result was certain, guess what, it’s not. Get to the ballot boxes before Joe the Plumber votes Joe Six Pack in.