Well, quite a few are allready laying people off... didn't take long. There are more, but you get the idea.
http://www.chicagotribune.com/news/local/sns-ap-il--coal-layoffs-energy-policies-20121109,0,3628608.story
A list of many business announcing layoffs:
http://www.examiner.com/article/scores-of-us-businesses-announce-closings-and-layoffs-due-to-obama-s-re-election