The latest NBC/WSJ poll has Obama up six points with registered voters, 49%-43%. Just two weeks ago, that lead was within the margin of error at 2 points.

A CNN-Opinion Research Corp. poll has Obama even higher, with an 8-point lead (53%-45%). That's double the 4-point lead Obama held in their poll taken last month.

And, in today's Gallup Daily Tracking poll, registered voters prefer Obama 51% to McCain's 42%. Gallup points out the importance of this:

The nine-percentage point lead in Oct. 4-6 tracking matches Obama's highest to date for the campaign, and the highest for either candidate.