In the first poll since CNN's Western Republican debate, Cain is ahead of former Massachusetts Gov. Mitt Romney by four percentage points, within the sampling error for the survey.

One quarter of GOP primary voters support Cain, who has surged in national polls recently due in part, perhaps, to his easy-to-understand "9-9-9" economic plan and consistent debate performances. Romney received 21% support. Former House Speaker Newt Gingrich netted 10% followed by Texas Rep. Ron Paul at eight percent. Texas Gov. Rick Perry received 6% support in the poll, half the amount he received in early October.