Here is an absolutely beautiful map; it's already one of my favorites: the Atlanta area from the 2008 Republican primary. You can really tell where the wealthy suburbs are, as Romney dominated them. McCain did well in the urban core, and Paul even had a pocket of strength in urban Atlanta.
That mess in Fulton County where a bunch of wild shade variations occurs is an area where there are very few whites, and therefore very few Republicans.
Refresh my memory as to which olors go with each candidate on this one. Thanks.