Mike Lee, a political scientist at the College of Charleston, said Sheheen has at least one reason to be worried. Sheheen had 40 percent support in a June Rasmussen survey, Lee points out, and he has dropped to 33 percent support at a time when an underdog candidate wants to see improvement.

http://www.postandcourier.com/news/2010/sep/25/haley-well-ahead-in-latest-poll/