Your analogy is stupid. Trump didn't endorse any of his wives for political office to have them stab him in the back. Try again.
“Trump didn’t endorse any of his wives for political office to have them stab him in the back.”
But Trump was disloyal - if it is permissible to use your measuring stick - to his first wives.
I would not say he stabbed them in the back when he changed directions and went for something he liked better. Neither should you throw those terms around because you might end up being repudiated by your own words.