I am unable to copy the map so you will need to use the link.
From the Amazon website-
What Are We Reading? Track America's Political Book Buying
Click on a state to see that state's percentage of "red" and "blue" book sales over the past 60 days, as well as local political favorites. Or see how the map has changed over time by using the right and left arrows to choose a different two-month period during 2008. To see the changes in the map over the same periods in the last presidential election year, click the "2004" tab. Updated daily.
http://www.amazon.com/gp/feature.html/?docId=1000261611