15 state legislatures plus the District of Columbia have passed legislation enacting the National Popular Vote Interstate Compact, as described on Wikipedia. However, this represents only 72.6% of the 270 electoral votes necessary to give the compact "legal force".
Will the states that have signed on to it be appointing their electors based on the NPV regardless of whether enough further states sign on to give it this "legal force"?
Or will the states that have signed on appoint their electors as usual until such "legal force" is attained?