Why Won't Hillary Quit?

Hillary has almost no chance of getting the nomination. She is behind in pledged and superdelegates and has no way she can come back. She still will not quit. Most presidential hopefuls in Hillary's posistion would have left the race by now. Hillary is a fighter so she will not quit. Is that the real reason? We will discuss why Hillary is still in the race and why she got to where she is now.When