Party ID numbers for January show something different than last month..

Independents are becoming more important.

In January, the number of Americans identifying themselves as Democrats fell another tenth-of-a-percentage point. Now the number of Democrats is at the lowest level recorded in more than seven years of monthly tracking by Rasmussen Reports.

However, in January, the number of Republicans in the country dropped by nearly two percentage points.

Currently, 35.4% of American adults view themselves as Democrats. That’s down from 35.5% a month ago and 36.0 two months ago. Prior to last month, the lowest total ever recorded for Democrats was 35.9%, a figure that was reached twice in 2005. See the History of Party Trends from January 2004 to the present.

The number of Republicans is now down to 32.3%. The number of Republicans in the country has stayed between 32.3% and 34.05% in every month for the past 18 months.

The number of adults not affiliated with either major party is now up to 32.3%. That’s the highest number of unaffiliateds since the summer of 2007.

Rasmussen Reports tracks this information based on telephone interviews with approximately 15,000 adults per month and has been doing so since November 2002. The margin of error for the full sample is less than one percentage point, with a 95% level of confidence.

As has been the case in every month over the past seven years of tracking, there are more Democrats than Republicans in the nation. The gap is currently 3.1 percentage points, up from 1.5 percentage points a month ago.



Scott Rasmussen uses a “dynamic weighting system” with regard to his polls. He surveys 500 adults/day to find their party ID. He totals the results without any weighing of the numbers and at the end of the month, he comes up with the party ID percentage for that specific month. These numbers can be accessed on his public site. In fact, he published an article on party ID today.

At this point, he does something interesting. Instead of using the results from the preceding month to determine the party ID weights in his various polls, he combines the results from the previous three months and then averages these results. This can product a result that may not be the same as the preceding month, but it will give a strong picture of party ID trends over time. Usually, the difference between the weights that they use in their polls and the results from the preceding month are quite small.



Below is a table with the history of the party ID for this year.

Party ID
Month / Repub / Democ/ Indep / Rep - Dem

Jan ‘10 / 32.3% / 35.4% / 32.3% / -3.1%
Dec ‘09 / 34.0% / 35.5% / 30.6% / -1.5%
Nov ‘09 / 33.1% / 36.0% / 30.8% / -2.9%
Oct ‘09 / 31.9% / 37.8% / 30.3% / -5.9%
Sep ‘09 / 32.1% / 37.5% / 30.4% / -5.4%
Aug ‘09 / 32.7% / 37.3% / 30.2% / -4.6%
July ‘09 / 33.3% / 36.8% / 29.9% / -3.5%
June ‘09 / 32.2% / 38.9% / 28.9% / -6.7%
May ‘09 / 32.6% / 39.4% / 28.0% / -6.8%
Apr ‘09 / 32.6% / 38.7% / 28.7% / -6.1%
Mar ‘09 / 33.2% / 38.7% / 28.0% / -5.5%
Feb ‘09 / 33.6% / 40.8% / 25.6% / -7.2%
Jan ‘09 / 32.6% / 40.9% / 26.6% / -8.3%

This table shows a clear trend toward independents. Self-identified democrats are starting to identify more as independents. Self-identified republicans increased in July. This was most likely caused by the “Tea Parties.” The increase in self-identified republicans in November was undoubtedly due to the enthusiasm regarding the elections in Virginia and New Jersey.



Where these trends will lead is open for discussion. However, listen to what Scott Rasmussen said in his article today:

Between November 2004 and 2006, the Demoratic advantage in partisan identification grew by 4.5 percentage points. That foreshadowed the Democrats’ big gains in the midterm elections. The gap grew by another 1.5 percentage points between November 2006 and 2008 heading into the election of President Obama. However, the gap is currently 4.7 percentage points smaller than it was in November 2008. It remains to be seen where the trend will head in 2010.

Keep in mind that figures reported in this article are for all adults, not likely voters. Republicans are a bit more likely to participate in elections than Democrats.



Party weights for their job approval poll as well as other polls are going to be affected somewhat. Below is a chart with the various weights used over the last few months.

Party Weights
Month / Repub / Democ/ Indep / Rep - Dem

Feb ‘10 / 33.1% / 35.8% / 31.2% / -3.4%
Jan ‘10 / 33.0% / 36.4% / 30.6% / -3.4%
Dec ‘09 / 32.4% / 37.1% / 30.8% / -4.7%
Nov ‘09 / 32.2% / 37.5% / 30.3% / -5.3%
Oct ‘09 / 32.7% / 37.2% / 30.2% / -4.5%
Sep ‘09 / 32.7% / 37.7% / 29.7% / -5.0%



Now for the fun part. Let’s see what will happen to job approval. I am going to make several assumptions about approval by party ID. Let’s pretend that the results of a survey shows this approval:




Assumptions

Rep: 20%
Dem: 80%
Ind: 40%



Using the percentages above, job approval would be, approximately:



Approximate Job Approval

Feb: 47.74%
Jan: 47.44%
Dec: 48.48%
Nov: 48.56%
Oct: 48.38%
Sep: 48.58%



So, what does this mean for job approval numbers?

Simple.

It will increase slightly.