During the month of November, 37.4% of Americans considered themselves to be Democrats, 32.5% said they were Republicans, and 30.2% were not affiliated with either major party. Those figures are virtually identical to both the October and the September results (see history from January 2004 to present).

These results are based upon tracking surveys of 15,000 adults per month. The margin of sampling error is less than one percentage point, with a 95% level of confidence. Please keep in mind that figures reported in this article are for all adults, not Likely Voters.

So far this year, the number of Democrats has ranged from a low of 35.9% in July to a high of 37.8% in February (see history).

For Republicans, the bleakest month was May when just 30.8% of all adults identified with the GOP. Their best month was October when 32.7% of American adults considered themselves Republican.

The gap between the parties now shows a 4.9 percentage point advantage for the Democrats. That’s the fifth straight month the gap favored Democrats by a margin between 4.5 and 4.9 percentage points.

A year ago at this time, the Democrats had a 6.1 percentage point advantage as they peaked to gain control of Congress in Election 2006.

Three years ago, in the month that President Bush was re-elected, the Democrats’ advantage was just 1.6 percentage points.

The advantage currently enjoyed by Democrats is larger than in any month from January 2004 through July 2006.

Democrats continue to have a significant advantage on ten key issues tracked by Rasmussen Reports. Nancy Pelosi's Party also holds a solid lead on the Generic Congressional Ballot.

Rasmussen Reports provides a daily Presidential Tracking Poll and maintains a database of key stats for all Democratic and Republican candidates.