The Tide Turns

Is the 2012 Election Finally Breaking Barack Obama’s Way? - The Daily Beast

Prior to the first debate Obama was running away with the contest.  The first debate reset the campaigns and it has taken until this long after the last debate for the momentum to resume.  Also, one can't discount the effect that Tropical Storm Sandy has had on the campaigning.  Chiefly it allowed the President to be seen exercising the power of his office but it is likely that any voters left undecided were going to break for Romney up until then.  Now, it is a ground game, get out the vote.