Chris
comments on a
paper which analyzes how income affects voting nationwide. Here's the conclusion:
In poor states, poor people vote Democrat and wealthy people vote Republican. The same is true in a medium-income state, though less so than in the poor state. In the wealthy state, however, income has very little effect on voting: both the rich and the poor vote Democrat and Republican.
Actually, I noticed this tendency in
exit poll data years ago. Cultural issues become salient when basic needs are met I suppose?