Cruz has explained the main things the big GOP donors ask for is to vote pro-abortion, pro-gay-marriage and pro-amnesty. They have a pair and they’re very willing to fight...fight conservatives, that is. No doubt the GOP donors would fear a true socialist like Sanders but they will gladly support Hillary over a conservative.
The donor issue is key. The RNC structured the entire game based upon donors (falsely assuming Cruz wouldn’t have any) and then Trump entered the race, leading in nearly every state - and he doesn’t need donors.
I bet there are plenty of RNC higher ups wishing they had not written the rules that they did, as those “winner take all” states will all go to Trump.
Check mate, RNC. Now go to hell.