Ancient Athens -- birthplace of democracy -- had an answer [1]. The sponsor of a law that was later found to be, in modern parlance, unconstitutional, could be

Ancient Athens -- birthplace of democracy -- had an answer [1]. The sponsor of a law that was later found to be, in modern parlance, unconstitutional, could be fined. Also worth considering: ostracism [2]. 1: https://en.wikipedia.org/wiki/Graphe_paranomon https://en.wikipedia.org/wiki/Graphe_paranomon 2: https://en.wikipedia.org/wiki/Ostracism https://en.wikipedia.org/wiki/Ostracism