"Uncharted territory" in this case, is Trump blatantly violating the Constitution...by the letter, as well as in spirit. The fact that the media is still breathlessly wondering if this crosses a line or not, tells you exactly which side of that line they are on.
There is no ambiguity here, so stop acting like it's still a question. He is openly breaking the law, and violating people's Constitutional rights. Pretending that he isn't, is pure gaslighting.