Look, I know you guys are feeling your oats right now ("it is as though every one of us has been elected president" --coverage of Obama 2008) but for Pete's sake; the man is not a king or a magician, so quit immediately looking to him alone for your every desire. There is a very real, very serious congressional effort to address this exact silencer issue that is gaining support rapidly right now, and could really use your help to increase its backing. This is the proper way to go about correcting our laws, and yes it is difficult; but that is because doing it that way is both permanent and just as hard (if not harder at this point) to overturn by our opposition at some later date.
If Trump magically made silencers unregulated by fiat, not one senator would stick his neck out trying to get the Hearing Protection Act passed, gun owners would go home satisfied to play with their new cans, and 4-8-12 years later a Democrat or anti-gun Republican gets elected, and suddenly all those changes are undone in an instant, and there is no longer an effort in place to oppose it. The easy way is for suckers (and sycophants)
BTW, the only way Trump could 'deregulate' silencers would be to declare he would no longer pursue federal charges against those in possession ("deferred action" that we've come to know so well). Basically yet another endorsement of lawlessness that erodes our system of law & justice even further. Let's do it the right way, and pass legislation that modifies the previous bill into something reasonable that we can build upon.
TCB