White Trend Map 2008 -> 2012

[True Federalist (진정한 연방 주의자)]

Looking at some of the state exit polls Obama collapsed with white men, and basically did the same with white women from 2008.

White men were hit harder by the Great Recession than white women were.  To the extent that 2012 was an economic referendum, it's not surprising that those hit harder would be more likely to turn against the incumbent.