Under the U.S. Constitution, the only date that mattered in the 2020 presidential election was December 14th. That was the date established by Congress under Article II, Section 1, Clause 4 ("... which Day shall be the same throughout the United States") for the 2020 presidential election. Each state was required to have its electors certified by that date. How they identified the electors was a matter to be determined by the state legislature, and nobody else.
If a state legislature in a state where the legislature already knew the election process was illegal didn't take action before December 14th to correct the fiasco, then the illegal election results would stand. There's simply no getting around that.
That makes no sense whatsoever. Particularly in light of the Guarantee Clause of Article 4 Section 4, which not only guarantees a “republican form of government” rather than a rogue, totalitarian one—but also guarantees protection against “domestic violence”, and something as serious as fraudulent electoral certificates qualifies as that.
If a state legislature in a state where the legislature already knew the election process was illegal didn’t take action before December 14th to correct the fiasco, then the illegal election results would stand