Based on the Partisan Voter Index, NH votes like this compared to the national average.
(+0.20R means .2% More R then the national average and so on)
Year PVI %Change from previous election
2000: +0.20R (Base Year)
2004: +1.98D (+2.18%D)
2008: +1.27D (+0.71%R)
2012: +0.97D (+0.30%R)
Still easily a battleground state as the numbers are less then 2% toward any party compared to the national average. Based on the Line of Best Fit predictor, NH should stay around +1D for the 2016 Election.
This, exactly. In a close election, NH will be close. Sure, if Hillary wins by 10 points, NH will be safe D... but then, so will PA, WI, IA, VA, NV, and CO.