If Senator Sanders endorses Mrs. Clinton, it should be expected that some percentage of delegates would not show up in Philly, and many of those who do will be harboring great resentment towards the campaign itself. Millions of voters will instantly retreat to the resignation and despair with party politics that they harbored before this campaign. The momentum of this revolution will largely come to an end. Base supporters will effectively be returned to the masses of disenchanted potential voters who justifiably feel that most politicians can’t be trusted, because they so frequently sell out when they’re most needed. Over the last 13 months, I’ve managed hundreds of volunteers. Dozens of them have individually expressed to me and others that they would “burn their Bernie shirts if he ever endorsed the epitome of everything we’re fighting against.” Nobody is immune to the backlash of endorsing the nation’s most corrupt politician, even the father of OUR political revolution. Most of the 13 million people who voted for Senator Sanders had not heard of him before he announced his candidacy. To these people, he represents more than just the social and environmental issues that resonate with them. He represents the very notion that there can still be integrity in the US Congress. If he endorses the very establishment candidate he railed against, he could lose those people to politics forever.
—Posted on the Confirmed California Bernie Delegates Facebook page by a delegate from Northern California.
As a longtime supporter and super volunteer, I would like to thank you for fighting on behalf of the 99% and for awakening millions of people, especially young people to the fact that establishment politics no longer works for the vast majority of the American people. I also want to thank you and your platform committee members for making the Democratic platform the most progressive platform in history.
However, we all know that the platform is an aspirational document that the President and the party can ignore. As a pledged delegate from California, I want to go to the convention in Philadelphia in two weeks and fight for your nomination, as I was elected to do. As such, I am alarmed by what I have been reading about your possible endorsement of Hillary Clinton in New Hampshire tomorrow. I am asking that you hold off on an endorsement until after the vote, that you not place her name into nomination using a vote by acclamation and that you exercise your option afforded you by the minority report signed at the platform committee meeting to force a vote on the Hightower amendment opposing the TPP in Philadelphia.
http://www.truthdig.com/report/item/dont_endorse_hillary_before_the_convention_20160711