The have until 12/3 to certify thier results and select electors by 12/8. Electors vote on 12/14 If states are unable to certify by 12/8 it goes to the SCOTUS for review to determine a contingent election and move the election to congress. (WI, GA, PA, MI should have issues certifying).  Great article: https://www.military.com/daily-news/opinions/2020/08/10/are-there-national-security-implications-failed-2020-presidential-election.html