Better to writ in TRUMP. Best result is for Bernie to win a plurality short of a majority of the delegates. Then he goes to Milwaukee as the apparent winner and gets the rug pulled out from under him again. If Bernie gets shafted that way his fanatics will either stay home in November or will vote Trump out of spite.
In theory, yes. But that puts too much trust in the Dems to split the vote.
When the money is split, go for the long shot.