Let me paint a picture that, I think is plausible within the law. Trump directly orders an assassination. With it comes a carrot (a general immunity for the killing). And the stick (a court marshall for disobeying a direct order from your superior, plus your name on a hit list). Then, he just has to go down the line with the same offer until someone bites. Once that happens, he will order them to go down the hit list with the same offer. Hell, he could deputise a militia to do the dirty. Not saying he would, I’m just pointing out the outer bounds of what is perfectly legal. And if the Republicans have a clean sweep nothing can or will stop him. Even without a clean sweep, he could threaten the life of any politician.