Did Bush get his increased margin from Bush counties or Gore counties?

[minionofmidas]

It very much differs by region...
The whole are from Boston to SOuth Jersey had very much reduced Dem margins, this is one of the key places to look.
Turnout increased in many Republican areas, especially in the rural South, this is another one.
In California, Dem margins increased in almost all the Dem areas and Rep margins in most of the Rep areas, and all the densely populated Rep areas.
Dem margins increased very much in rural college-dominated counties.
Pretty much all the traditionally Republican major cities in the midwest (you know, like Columbus, Cincinnati, Indianapolis, Grand Rapids - note that Columbus' county has been won by Democrats for three elections in a row now) swung Democratic.
Etc.
So, to answer in one word: Depends.