You basically have to keep losing. And appealing to higher courts. Don't forget that there's politics everywhere, even in the court system, so your issue has to be something that the justices are going to be ok having their names on, or it will never see the light of day. The supreme court can refuse to hear a case and do so without comment. Also, it can't be some broad sweeping thing. It can't be something like "We don't like SOPA/CISPA. We just don't." What you want to do is target the specific things about it that are either in conflict with current law, or violate the constitution. Oh, and be prepared to pony up the dough. For as many lawyers as we have in this country, not many of them are qualified to argue before the supreme court.