The date for presidential elections is set by the US constitution. Article 2 Section 1 provides that the state legislature directs how presidential electors are appointed by that state —- the state legislature not the courts. The courts may not write the rules for selection of presidential electors
The rats did an end around with this one. The WI SC is still 5-4 Conservative so they bypassed them and found a sympathetic Rat fed judge who would allow them to cheat.