Sanders won New Hampshire in a landslide, there is no doubt about it. Even if Sanders picks up steam and wins more states, even the nomination, New Hampshire will always be one of his best. Almost every demographic was won by Sanders. Almost. This is wherein Sanders may run into a conflict surmounting even the most difficult inroads. In almost every single category that Sanders won, he won because of his supporters and people that supported him alone. Amongst those who said that both Clinton and Sanders did well, on almost anything, Clinton won.
http://www.cnn.com/election/primaries/polls/nh/DemWhen asked a variety of questions and given the opportunity to answer "both", Clinton was able to pull ahead, or at least make the game narrower than it really was. From "Who shares your values?" (52-48, 50% of the electorate) to "Who is honest and trustworthy?" (72-27, 39%) to "Who do you trust to deal with income inequality?" (62-36, 37%) Clinton won. On healthcare (57-42, 49%) and the economy (58-41, 37%) Sanders won, but by smaller margins then his overall victory. The only two issues he won by larger groups were on the ability to handle an international crisis (74-24, 48%) and on gun policy (61-39, 47%), which were categories where Sander's core support (those who said "only Sanders") was very close to Clinton's (those who said "only Clinton").
"Well why is this important?", you may ask, and rightly so. Even if Sanders was close amongst these groups, more people said he was the only one capeable of taking on these tasks in all but the question on international crises. In fact, amongst those who said only one candidate was more honest and trust worthy than the other (and not that they both were), Sanders won in a 50-7 blowout.
It is important because Sanders now goes to states where he is forced to fight against large groups that view Clinton as just as capeable, if not more so, of dealing with the issues than Sanders. Even if Sanders is able to show everyone why his message is a positive one, and why people should listen to it, most people will switch not to "only Sanders", but rather, to "both". In fact, the only reason that he won the categories that he did by more than he won the state was because the margins were much closer amongst those who said "only this candidate". As already stated, Clinton won amongst the "only" group for international crises 28-19, and Sanders won gun policy by a narrow 5 points (23-18).
As such the challenge for Sanders is not minorities, or women, or even getting out his message. Above all else, it is showing people how his message is not only on par with Clinton's, but better. When even in one of his demographically best states he can not carry his message, it is not a good sign looking forward.
