Trump very likely has enough support to win as a third party candidate. He is the only possible candidate who can defeat the democrats with their vote fraud. In any case, if the party steals this from Trump and gives it to someone such as Romney or Bush, tthen Trump would be doing right by this country, running as third party (and winning) by offering people a viable alternative to the Washington cartel/uniparty/globalist cabal. Mr. Trump does not need the Republican party; the Republican party needs him.
Now you are dreaming.