If you look closely enough, you can see that these two cartograms of the 2008 (left) and 2012 (right) elections are slightly different. The most recent election is definitely a brighter shade of red in the Ohio River valley and the Appalachians; the Upper Midwest is more purple than blue; and a few cities have turned even deeper blue. But the differences are generally quite small. There's nothing on par with Al Gore being reduced to an urban+suburban candidate in 2000, or even Bill Clinton's slow erosion of Southern support in 1996. Despite the weak economy, Barack Obama's electoral coalition has proven remarkably stable.