Disappointing but not unexpected. As a citizen of Vermont and a fierce Bernie supporter, I feel like I've been sucker punched by a dear friend.
At least now the latest "Dark Act" that passed the Senate a few days ago can be killed and Vermont's GMO labeling law will be able to stand. With Bernie's reluctant endorsement, even if the bill passes the House, (which it will since Republicans have a firm control over that body), the bill will either die in Conference Committee as the House & Senates will magically not be able to come up with a compromise bill to take to the President, or Obama will simply veto it and that'll be the end of it.
Bernie, you had a chance to be a hero - a real Revolutionary. Unfortunately, the world's graveyards (and more than a few unmarked graves, as well) are full of heroes and Revolutionaries. You weren't willing to throw the people of Vermont under the bus for the sake of the Revolution and I can appreciate that. But we would have survived. Instead you broke your promise to take your Revolution all the way to the Convention.