No one here was able to answer my question.
Obviously you might answer "the people" but we know the founders did not trust them, rightly so.
Legislatures might be a better answer, but obviously you cannot trust them blindly.
And presidents are the most dangerous to trust with that power, see human history for guidance.
To me the USSC is the answer and the check on them is either impeachment (for gross malfeasance) or the Amendment process.
I don't want to pick on Trump, I will say this: over the past few years, well before Trump, I became acutely aware of the flaws of our system and the dangers of putting too much faith in it.
I have no answers either, in case you're wondering. Society seems to be coming apart at the seems from all side and I have no idea when/where it will end.