https://constitutioncenter.org/blog/explaining-how-congress-settles-electoral-college-disputes This is the best thing I’ve found so far that explains it, since there’s a lot of ‘it depends’ involved.
If an objection meets these requirements, the joint session recesses and the two houses separate and debate the question in their respective chambers for a maximum of two hours,” the CRS said. “The two houses then vote separately to accept or reject the objection. They then reassemble in joint session, and announce the results of their respective votes. An objection to a state’s electoral vote must be approved by both houses in order for any contested votes to be excluded.”
It also talks about the ‘second set of electors’ but states that a state legislature would have to send a second set to trigger that. None of the state legislatures have done so; it was done by the Republican electors themselves, best I remember.
Thanks!
“An objection to a state’s electoral vote must be approved by both houses in order for any contested votes to be excluded.”
Bummer.....