I am sure if varies by state but here in CA the ABC is strictly a regulatory agency. They don’t make laws…they enforce the laws. However the CA ABC has quite a reputation for trying to “make laws” based on how they choose to interpret the law. So it is not so cut and dry as far as needing to change a law. Really many, many times all we need is a more favorable ruling not a full blown law change. Of course it is doubtful the ABC will do that just because some homebrewers want a change. That is where the political pressure and media exposure help. But that DOES mean that someone has to challenge the ABC and not just roll over.
The only Idaho homebrewing law that I am aware of, is that all homebrewed beer must contain a minimum percentage by weight of 20% potatoes.
From your friendly next door neighbor.
Yukon Golden Lager!