The prevailing wisdom divides the U.S. into red and blue states.  But that’s not quite right:  every state is really a mixture of red and blue.  The same is true of every city, county, and town in the country—and of most people as well.

This map, from Princeton professor Robert J. Vanderbei, is a better representation of the political landscape in the U.S.  We’re not all red or blue—most of us are a haze of purple.