Romney's chances in CO must be good, considering the President is literally stopping there on a very regular basis, including tonight.
Yes, actually it does seem like the big move upward for Romney has been in Wisconsin, Iowa, Colorado, and to a lesser extent Nevada and Michigan. There seems to have been much less positive effect in Ohio, Florida, Virginia, and North Carolina.
It seems the alteration in the polls has left us with a lot more truly unpredictable swing states and some of the rationales we were developing - such as that the Hispanic vote was going to nail down Nevada and even Colorado - in doubt.