Hillary has nothing left to live for if she fails this time. She sold her soul to get where she is (particularly voting for the illegal Iraq invasion so that she would not be seen as 'weak'). Merely crawling back to a Senate seat for a dismal sail into her last days would be too inglorious. Everything will be done to put her (back) in the White House, this time upstage.
Trump has more to live for. He will, at worst, return to an even more successful business career. Maybe he can even run one of his offspring later.
Cruz....hmmm. Who God has anointed can hardly fail. To fail would show lack of anointing. Hard to say what becomes of him. Ignominy would be too much for us to hope for. He would probably remain a thorn.
Fundamentally, though, what America needs is none of these. An end to the two-party dictatorship alone would be a good start. But they have been so successful at their gradual coupe d'état that booting them is improbable.
That's what makes Bernie all the more attractive. He represents at least a step in the right direction, even if it may seem 'left'.