It is in The Constitution. The individual state legislatures determine the voting procedures of each individual state, not the secretarys of state nor the judiciary. The voting laws in many states were changed in the last election in an illegal manner by the secretarys of the states and the courts. Thus the last election was totally illegitimate.
Covid impacted many processes when it was full blown
and the USA was in some form of lock down. jmo
Indeed. The SCOTUS has repeatedly affirmed the State Legislatures have plenary power over elections run in their State, including elections to Federal offices. The Governor has no say. The State Supreme Court has no say.
Deal with it, progressives!