I disagree in that state laws MUST conform to the guidelines of the Constitution.
State laws are not absolutely sovereign.
I think there is room to disagree on specific details on this, which is where I think we disagree. But I think overall, I would stand by my statement that state governments are not sovereign unto themselves in this Republic .
I agree that states are not absolutely sovereign, but the language of the U.S. Constitution gives an enormous degree of plenary power to state legislatures when it comes to presidential elections.