The "sposoring" or "supporting" or "bribing" or call it whatever you want it comes with one thing alone - giving money. The line between sponsoring and bribing is about the effectiveness of it. If the bill passes, they are supporters, if not, they are bribers.
I agree with one thing, in the end they aren't making their own decisions. Why the hell would you need to "sponsor" or whatever you call it to pass a bill, that IF in the first place was correct, most humans would realize that. Like good vs evil. And the evil here are the organizations with old minds that haven't got a clue how things work these days, so they implement bills that will only do more harm than good.