I agree. Trump needs McCain more than McCain needs Trump. McCain will die enacting his revenge on Trump and there’s not much Trump can do about it except tweet.
Trump better not need McCain because McCain is not going to cooperate on anything that POTUS is involved in.
McCain is demented, blinded by envy & hatred. The most likely information says he paid for the dossier to bring down the Republican candidate for spite. That willingness to hurt Americans, just for revenge isn’t going to change this side of the great divide. McCain argued against any benefit increase to veterans, against looking for servicemen left behind, murdered 133 sailors by his carelessness. The man is evil and the fact that it was his turn to run for President against O tells you everything you need to know about the swamp.
That said I would rather McCain resigned before his crimes surfaced and that if not, the facts are brought out by the Justice Department or others rather than POTUS. POTUS has more important things to do than take out the trash.