Mvymvy posted a truncated quote from Bush v. Gore that stated the selection of electors by states was plenary.
I called him on it and published the FULL quote that had a caveat - that once the vote is granted to citizenry, 14th Amendment equal protection applies and the state CANNOT value one voter's vote over another. Meaning, you CANNOT change a person's vote [which is what the NPV Compact basically does].
He had NO ANSWER for that ...
National Popular Vote gives a voice to the minority party voters in each state. Now their votes are counted only for the candidate they did not vote for.