The GOP changed their vote back to not certifying the elections.
No. They signed an affidavit that has no bearing on their certification. Under Michigan law they can’t take back their certification.
“Aneta Kiersnowski, press secretary for Michigan Secretary of State Jocelyn Benson, told NBC News, “There is no legal mechanism for them to rescind their vote. Their job is done and the next step in the process is for the Board of State Canvassers to meet and certify.”