The last map perfectly shows what's so depressing about US politics (poor people voting massively for a party dedicated to serve the interests of the wealthier).
However, it is generally the wealthy voters in each state which vote more Republican--it's just that poor people in, say, Kentucky, are more Republican than poor people in Connecticut.
Considering the GOP's ideology, them attracting more than 10% of the poor is already pretty shocking.
Part of the reason I hate US comparisons with Euro politics. These kindsa people would be voting Labour or BNP in the UK (for example) or the PS or the FN in France.