States with legislatures, like Arizona, that resist even taking up a vote on the issue should consider pursuing a referendum, if their states allow it. The up or down vote on the convention of the states would have to come from the state legislature itself, according to Article V, but presumabley a state referendum could at least force them to vote on the issue, one way or the other.
That is an excellent idea. It certainly would put pressure state legislators to get on it!