I’ll make this short and then turn it over to you all.
As long as Trump is polling in the top 2 or 3 in early States he can’t drop out and the RNC can’t force or even encourage him to drop out. After all he is “Winning” by the only measure that matters this cycle. In past cycles maybe there were only three or four tickets out of Iowa, two or three out of New Hampshire, and only one or two out of South Carolina. And most of that was driven by money, if you didn’t have one of those early tickets it dried up. But this cycle not only is money not necessarily the screen that it used to be (you being one Fries, an Adelson or a fifth of two Kochs from having cash for the distance), it wouldn’t operate anyway if you actually have one of those top two tickets.
As of now Trump is Trapped. By success. Or more precisely by successful excess. And I don’t see any mechanism by which the Republican Party can chase him away. After all I saw polls today that had him leading both nationally and in North Carolina. How much of a loser do you have to be to quit while you are on top?