I saw a painting today by a Roman Catholic which depicted President Trump crushing the serpent's head.
Upon reflection, I would suggest that all forms of semi-Pelagianism are essentially seeking to replace Christ as the one who makes peace between God and men. Whether it's Rome or Arminianism or Federal Vision, all these heresies, which borrow elements from the Pelagian heresy, teach that men can and must crush the serpents head, at least in part, for themselves.