Thanks very much.  That was useful.<p>It still seems like there&#x27;s a possibility that a large minority, who will vote against the bill no matter what, can attach a rider that appeals to a subset of the majority that&#x27;s in favor of the bill but which will make the bill unpalatable to the rest of the supporting majority.  But those kind of hypotheticals quickly devolve into complicated strategies, and it&#x27;s not clear there&#x27;s a better mechanism than the majority vote.