Even CBS can't ignore him now. The poll, conducted November 10 - 12 by the West Des Moines-based firm Selzer & Co, shows Cain in the lead with 20 percent, while Paul comes in at 19 percent. Romney wins 18 percent support, and Gingrich earns 17 percent. The margin of error is 4.4 percent. While Christian conservatives have more influence in Iowa than they do in the rest of the nation, only a quarter of likely caucus-goers say social issues are more important this ...