USA Today/Gallup has released a new survey conducted over the weekend showing John McCain leading by four points among registered voters (50-46) and ten points (54-44) among those most likely to vote in November. That represents a 13-point net swing in McCain's favor since the last USA Today/Gallup poll taken in late August before both conventions:

McCain 54 (+9 vs. last poll August 21-23)
Obama 44 (-4)

Overall, McCain has now take a 1-point lead in the RCP National Average, the first time he's held the lead since April 14.