“Mitt’s media ads have successfully positioned him as the only true ‘outsider’ candidate running against other inside-the-Beltway contenders (Gingrich and Santorum in particular), a smart tactic in a year when voters feel Washington is broken,” Lee noted. “At the same time, he is defining his opponents even before voters have a chance to learn more about their positive attributes (Santorum, Gingrich, etc.). This means we’re unlikely to see any of the anti-Romney candidates surging unless one of them can generate momentum from a strong South Carolina showing and/or reshape the race with effective paid TV ads.”