There's definitely been some tightening over the last few days in the tracking polls. As you know, each day we come out with the TPM Track Composite, a computed average of 6 of the 8 available tracking polls. Here's the graph going back to October 5th, including today (click through for a larger map)...

(ed.note: You may be asking the obvious question: why do you only use six of the eight. We do not include the TIPP-IBD because it's on a five days cycle, rather than three like the rest of the polls. And the sample size is also much smaller than the rest. That creates both an apples and oranges comparison problem, matching them with the other polls, as well as a question of reliability. We also do not include the GWU/Battleground poll because unlike the other trackers, it only comes out on weekdays.)