I reported this back in August: a slim majority of Republican caucus goers favor withdrawing US troops from Iraq within six months, according to data from Strategic Vision, a Republican polling firm. Strategic Vision has done a poll of Iowans once a month since then, and both September's and October's numbers confirm that the August data was not a fluke. Even after Gen. David Petraeus testified before both houses of Congress, Republican support for withdrawal from Iraq has steadied and perhaps even grown here in Iowa, to a whopping 54% in October. ... I argued a few weeks ago that I thought this gave Rep. Ron Paul an opening in Iowa, since he is the only candidate who publicly opposes the war.