Suppose that VP Pence chooses to declare the dispute on his own. He would be justified in doing so, since there is testimony to major malfeasance in all six states. He can declare that since election officials failed to follow state law, they did not conduct an election. If there is no election, then there are no electors. If Pennsylvania has dueling slates of electors, “certification” does not matter. Neither slate is legitimate. If a state has not submitted a valid slate of electors, then it has no votes to submit. VP Pence can then throw the certificates in the trash, leaving zero votes for Trump and zero for Biden from that state.
Which it does not.
If your aunt had balls, she's be your uncle.