Face the facts, Hillary. Obama's got the nomination locked up, you might as well pack it in. You have two ways of doing so. One is with some class, and the other is without class.
The classy way to do it would be to concede the nomination to Obama, and throw your support to him, bowing out gracefully.
The low-class way to go, which is what I expect from you, based on your recent performance, is to hold on , kicking and screaming, claiming foul, creating confusion, refusing to retire from the field, even though you have no chance of winning. You want some influence, even the tiniest measure of power will do.
I hope I'm wrong, and you, Hillary, will subside gently into the background. Let's see what happens.