In their endorsement last week, the New York Times said Hillary Clinton is "one of the most broadly and deeply qualified presidential candidates in modern history." And only a few days earlier, famed libertarian socialist scholar Noam Chomsky - who is certainly more politically and intellectually aligned with the policies of Bernie Sanders - stated in an interview with Al Jazeera that he would vote for Hillary Clinton because Sanders "doesn't have much of a chance." And this is after Chomsky publicly endorsed Sanders!
There is a reason that 39 Democratic Senators and 155 Democratic House members have endorsed Hillary Clinton and not a single sitting Senator has endorsed Bernie Sanders. It's all about self-preservation - they want to keep the White House and they want to be re-elected.
It would be a mistake to think that the Ted Cruz victory in Iowa has dealt a fatal blow to the Trump campaign. It's more of a hiccup than a derailment for The Donald. In CNN's most recent poll, Trump has a 25 point lead over Cruz in New Hampshire. He'll get a bounce from Iowa to be sure, but Cruz won't have the evangelical base to bolster his performance in the Granite State. And Rubio will have to compete with Bush, Kasich and Christie for the establishment Republican voters. This will likely result in a lopsided victory for Trump in New Hampshire, setting up further victories for him in Nevada and South Carolina later this month where he has double-digit leads.