Article II, Section 1 delegates to the state legislatures sole authority to direct how the states' presidential electors will be appointed. The argument could then be made that any prior provision of the Constitution that interferes with a state's ability to respect the various requirements of Section 1 of the Fourteenth Amendment in the appointment of electors is implicitly superseded by that section.

I don't say that's a winning argument, but I do believe it's as good as it gets.