If this assertion is, in fact true, we shall see if the mild-mannered Mike Pence has the balls to assert himself in such a manner.
A great many people put such faith in Bill Barr and he failed miserably. Wilted like a rose in Death Valley. Will President Trump be the very last American President? Time is growing short and not many people have stepped up to the plate to stand by his side.
A big 'if'. What happens on December 23rd is a check to make sure all the states have submitted their certificates and results. If any state is missing then they contact the Office of Official Registrar at the National Archives to get a replacement copy - states submit a minimum of seven copies and a maximum of nine to both Congress and the Archives. All they are doing is making sure the results are in. Neither Pence or anyone else is approving the submissions.