Gallup: Gingrich 22, Romney 21

By Terence P. Jeffrey | November 21, 2011 | 3:51 PM EST

Former House Speaker Newt Gingrich speaking in Pella, Iowa, on Nov. 1, 2011. (AP Photo/Charlie Neibergall)

( - Former House Speaker Newt Gingrich of Georgia has pulled ahead of former Massachusetts Gov. Mitt Romney, taking a narrow within-the-margin-of-error lead over Romney in Gallup's latest national poll of registered voters who are Republicans and Republican-leaning independents.

Gingrich had the support of 22 percent of these registered voters and Romney had the support of 21 percent, according to the poll, which was conducted Nov. 13-17 and released today.

The poll surveyed 946 registered voters who are Republicans or Republican-leaning independents and had a margin of error of +/- 4.

Former Godfathers Pizza CEO Herman Cain was third in the poll with 16 percent, followed by Rep. Ron Paul of Texas with 9 percent, Texas Gov. Rick Perry with 8 percent, Rep. Michele Bachmann of Minnesota with 4 percent, former Utah Gov. Jon Huntsman with 1 percent, and former Sen. Rick Santorum of Pennsylvania with 1 percent.

Two weeks ago in the same poll (Nov. 3-6), Romney and Cain were tied at 22 percent, with Gingrich in third at 13 percent, followed by Perry at 11 percent, Paul at 6 percent and Bachmann at 3 percent.