This explains a lot. If Trump looses focus on the Supreme Court and goes down the witch hunt rabbit hole, the RINOs will bolt like scared little bunnies. He won't get another appointment in the present term.
But if he bides his time. Campaigns for a better congress and slips another constitutionalist onto the bench he will have done more for this country than I had ever anticipated.
If he can post gains in Congress after the midterms then Mueller's days are numbered. Sessions will likely resign, after firing Rosenstein. (A little 2019 prediction for you).
Very good