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[Editor's note: This is the third of a six-part series by Paul Lukasiak on what polling reveals about how Americans will vote in the coming election. Part I gave an overview explaining that "Not just sexism but also racism were major factors in how the 2008 election would play out." Part 2 examined what happens when the percentage of black voters increases. -- DN]

Racism and Sexism: What Happens When the Gender Gap Shrinks

The previous chapter shows how the gender gap decreases as the Black vote increases. By sorting the same data by the gender gap shift, we can see what happens as the gender gap decreases. (Note that the numbers at the bottom of the chart reflect the progression of the gender gap shift, and not the percentage of Black voters.)

The first thing that should be noted is that while overall gender gap trends are related to the percentage of African American voters, there is considerable variation. The grouping of Black triangles near the Plum line represent those states with the lowest percentage of African American voters; this group includes all the heavily Republican Mountains/Plains states, and also includes two “home states” (Hawaii and Arizona) where “favorite son” status trumps the gender gap.

It is important to keep in mind that while we are looking at an overall trend, that trend in some senses represents a series of similar “sub-trends.” So while heavily Republican states may not have the largest gender gaps, within the subset of heavily Republican states you see a decrease in the gender gap as the percentage of African American voters increases.

So while there are a lot of Black triangles (representing the percentage of Black voters at that point on the gender gap trend line) grouped around the Black % trend line, there are also quite a few obvious outliers.


chart-1.jpg The behavior of men and women is significantly different, as the gender gap decreases (and Black voter percentages increase.

By sorting by gender gap, we get a much clearer idea of who is responsible for the changes in the gender gap as the percentages of Black voters increases.

· The gaps within the subsets of males and females both get smaller (close in on the 0% Plum line axis) as the gender gaps decreases (and the percentage of African Americans voters gets larger).

· The slope of the male (Blue) line is less than that of the female (Red) line, telling us that women are more responsible for the gender gap shift that occurs that occurs as the percentage of Black voters increases.

· There are few “outliers” among the male and female data points, just as there were few outliers when the same data was sorted by Black percentages, which strongly indicates that there is a significant correlation between Black voter percentages, and the changes in the gender gap.

chart-3.jpg Finally, if we look at the White vote shift trend line when we sort the data by gender gap shift, while the White shift vote data points are not closely bunched around their trend line, there is slight downward trend among the grouping, suggesting a relationship between the changes in the White vote, and the changes in the gender gap.

In addition, whether sorted by the percentage of Black voters, or by changes in the gender gap, the White shift trend line remains nearly the same, starting very close to +5%, and with little change in the angle of decline, suggesting that there is a fairly strong correlation between the gender gap sharp, the percentage of Black voters, and the White vote shift.

Next: Sexism, Racism, and Win/Loss Margins