if bary o has anything to do with legalization, it will be attached to some antigun positions.. like: you get high?? no guns. dats how that backdoor MOFO operates..
EDIT: they are all backdoor.
they are already having that fight in certain med legal states, with mixed results. a few courts have held that you do not give up your 2nd amendment rights to self-defense regardless of what prescription medicine you take/use. I think this is the correct line of thought, myself.