In that case, the House GOP Caucus can and should remove Ryan from Speaker ASAP after he is defeated in his primary
Sorry, the House GOP Caucus LOVES Ryan. They have been quiet as mouses while he endlessly frags Trump for months on end.
That may be true. But, if they don't remove him on their own if he is in fact defeated in his primary election, then they will before election day, especially if Trump turns up the grassroots heat on them prior to their own elections to replace him provided he doesn't ride off into the sunset with his unspent campaign cash and a new 7 figure K Street lobbying job waiting for him.
Enough of his GOP House fan boys will realize he is not coming back and they will not either unless they remove him as Speaker ASAP.