“The state legislature can appoint electors if necessary. The Wisconsin, Michigan, and Pennsylvania legislatures are all run by the GOP.”
This is true and by hefty majorities. Plus WI and MI have GOP governors but I’m ‘not sure what, if any, the governors play in the states in question. I’m sure each state has a different law on appointing electors to guarantee safe harbor. Then there are the courts in each state. Lord knows what they would decide if it came to that or the even the federal courts for that matter, keeping in mind there is a 4-4 split on the SCOTUS.
There is a lot of room for mischief but the bottom line is that time is on Trumps side since the Clinton machine et al waited three weeks to initiate the recounts.
Provided for in the Constitution, in the early years of the Republic, legislative appointment was the most common way that electors were chosen. Governors do not get a veto.