538 notes:
In Iowa, SurveyUSA has Obama 9 points ahead of John McCain; Hillary Clinton was not surveyed. Obama has held a lead over McCain in all 12 Iowa polls released since the first of the year, and the state would appear to be about as safe as can be for a state that went for George W. Bush in 2004.
This article available online at:
http://www.theatlantic.com/daily-dish/archive/2008/05/true-blue-iowa/216083/
