The map in the New York times URL below showed a sea of red in terms of shifting support to the right.
Also, Obama massively lost the white vote.
http://www.nytimes.com/interactive/2012/11/07/us/politics/obamas-diverse-base-of-support.html
<img src='http://graphics8.nytimes.com/packages/images/newsgraphics/2012/1107-howhewon/white-voters.png'>
Mr. Obama won despite losing the support of white voters by wide margins. Overall, he lost this group by 19 percentage points, even larger than his 12-point loss in 2008.
Also, Obama massively lost the white vote.
http://www.nytimes.com/interactive/2012/11/07/us/politics/obamas-diverse-base-of-support.html
<img src='http://graphics8.nytimes.com/packages/images/newsgraphics/2012/1107-howhewon/white-voters.png'>
Mr. Obama won despite losing the support of white voters by wide margins. Overall, he lost this group by 19 percentage points, even larger than his 12-point loss in 2008.