He needs to hang it up. It cannot be argued that he is a national candidate.
"Cruz needs to hang it up", for sure. He's surrounded himself with folks who are adding to his delusion. Perhaps normal folks getting the message to delegates and Republican candidates who need to listen to voters will put an end to Cruz and insider elite madness. It does seem that Cruz is way to delusional to recognize that what he's doing could tear the nation apart.
The only hope he has is back room, underhanded delegate acquisition.