Income and Obama

from red state blue state rich state poor state

This is one of the more dramatic charts from the 2008 presidential election. The Republican vote share peaked within an income range of $75,000 to $125,000 at about 50%, and then decreased from there to comfortably below 50% at the $250,000 income level. This is in stark quantitative — and qualitative — contrast to 2004, where then it zoomed above 60%.

I didn't find a chart extending this to higher income levels (I would suppose sample size would be problematic), but still, the above chart counters many presumptions.