It is NOT a states' rights issue, as the Jersey Supreme Idiots were specifically shut out by both the Constitution and those authorities recognized by the Constitution as having this role in Senate elections. The Constitution specifically mentions the state
legislature and Congress has having authority to set the rules. As neither the NJ legislature nor Congress gave a role to the NJ Supreme Idiots regarding ballot vacancies prior to their vacation of said rules, it fell on SCOTUS to restore what had been.
The fact that they failed to do so does not make it a "right" decision.
That is what you say: but both Marc Levin and Judge Nepolitano said differently---that there was no Constitutional issue here.