NH has alot of independents, which might explain Mitts lead. But I am still suspect.
The party ID in the survey was R +6 (Dem 29, Rep 35, Independent 36). In 2008 it was also D +2 (Dem 29, Rep 27, Ind 45) and in 2004 it was R+7 (Dem 25, Rep 32, Ind 44).