Is Mrs. Clinton finished?

See here. The answer is No. She should (and will, I believe) take her basket (a rather large one) of voters and delegates to the convention and insist on working out a political solution for ending the race formally before a floor fight takes place. With the close margins now existing, she can't be said to have no leverage at all. The Democrats can't afford the luxury of a wrenching fight for the ultimate control of the party, even though that might be a valuable prophylaxis in the long run. They see themselves in a must-win situation, and they want a winning unification ticket in place for the fall. A unilateral withdrawal would not bring this about--it's an acknowledgement of defeat, and with defeat comes the next round of treachery, perfidy, back-stabbing, etc. Withdrawal doesn't push the party's core toward an acceptable middle. Hard-edged negotiation does. I don't see that happening until all the primaries are over. They will be in less than a month, without an official victor. The preliminary rules meetings take place in early June. We'll be able to tell then what the weather will be in Denver.