March 20, 2007 Giuliani Top Choice Among Both Moderate, Conservative Republicans Gingrich, Romney do better among conservatives than moderates by Jeffrey M. Jones GALLUP NEWS SERVICEPRINCETON, NJ -- With the 2008 Republican presidential field beginning to come into shape, there are still questions and apparent opportunities for a favorite "conservative" candidate to emerge. The three leading announced contenders -- Rudy Giuliani, John McCain, and Mitt Romney -- have taken stances in the past that are out of step, if not unpopular, with conservative voters, although all have taken recent steps to try to reassure conservatives. The key question is...