… The maps we have made show that the election was not just about red and blue states. …
[C]ontrary to what you have heard, there’s only a strong red America-blue America split toward the top of the income distribution. Toward the bottom, the electoral map is a sea of blue.
Why does this happen? Our research on opinion poll data from earlier elections finds that lower-income Americans tend to vote based on economic issues, while richer voters consider social issues as well as economics in their voting decisions. [cont.]
Andrew Gelman, Columbia, & Avi Feller, Harvard (NYT)