Interesting point. Doesn't matter what the states do if the Senate doesn't think the election results of it's new members are legitimate.
https://www.senate.gov/civics/constitution_item/constitution.htm#a1_sec3
https://twitter.com/5Strat/status/1061095791421313025
https://www.senate.gov/artandhistory/history/common/contested_elections/intro.htm