A new poll out of Iowa suggests that the only GOP candidate to stand a chance of beating Obama one on one in 2012 is Congressman Ron Paul. The NBC News/Marist Poll places Paul in third place with 17%, just 1% behind Mitt Romney, and well within the margin of error of second place. Former Speaker of the House Newt Gingrich tops the poll with 26%. Over the past few weeks Paul has consistently polled...