Why didn’t you post the (sucky) internals of this (shabby) poll? They were right at the top of the page.
Actually, I had pasted that paragraph in the field, then made some edit, and then I posted it but I think I posted the version on a previous screen without the internals. So here goes:
Polling was conducted by telephone August 21-22, 2007, in the evenings. The total sample is 900 registered voters nationwide with a margin of error of ±3 percentage points. Results are of registered voters, unless otherwise noted. LV = likely voters Democrats n=335, ±5 percentage points; Republicans n=314, ±5.5 percentage points