This is historic.
No matter how things go after NH (and no matter how the Hillary hacks are going to rationalize NH), Bernie's campaign has already achieved what nobody ever thought they could. His message and his voters will be a force to be reckoned with for the future of the Democratic party. This is just the beginning.
The issue is how you expand those ideas beyond the Democratic base. This CAN be a good thing for the Democrats, but if not done right could blow up in their faces, particularly if the GOP decides not to drive themselves off a cliff.
That's what I fear. I can get behind Bernie in the general, but he has yet to define himself. Even in the primary, what do Democratic voters know about Bernie besides him being against Wall Street and the Establishment. If he gets nuked by Republican money and they define him as some crazy old Jewish socialist from the North then he's f7cked in the general electorate. No matter how many college kids come out.