One of the many benefits of working at the Atlantic is that Marc Ambinder is on hand. He came into my office yesterday and gave me a very calming exegesis of the Democratic race. You can now have your own Ambers therapy session here. Money quote:
Q. Can Hillary Clinton win the nomination?
Q. Can you be more specific? Is it mathematically possible for her to win the nomination?
Q. Is it likely that she will win the nomination?
A. Based on the math alone and a reasonable projection of external events, no.
Chait has a useful delegate math reality check here. Know hope.