After sharing the stage with Chuck Norris in his last ad, Republican hopeful Mike Huckabee get serious, highlights his faith and conservatism, in an ad that began airing in Iowa Monday. Huckabee claims his faith defines him and makes sure to point out that he believes "life begins at conception." The ad also makes a point of branding Huckabee as an "authentic conservative" after criticisms have been levied by leading conservatives, including Bob Novak, that Huckabee is not a true conservative.