Rasmussen: Dems Losing Strength

Rasmussen Reports says their telephone polling of roughly 15,000 adult Americans per month shows that the number of individuals who call themselves Democrats has been declining while the number reporting Republican has remained unchanged:

The Democrats now have a 7.6 percentage point advantage over the Republicans, down from a 9.5 percentage point advantage in June and 10.1 percentage points in May.

Perhaps Obama has negative coattails. If self-identification with the Democrats keeps falling at the same rate, a lot of Congressional races thought to be "in play" will turn out not to be so.