You do realize that he could only hypothetically be considered for impeachment is if he himself was involved with the "alleged" hacks? There's been no evidence that he was.
Even then, the House and Senate would have to vote to impeach him and with a Republican-controlled Congress, the likelihood is almost zero.
I wasn't really being serious when I said that, so...
The electoral votes will be officially counted on January 6, when Congress returns. Vice President Joe Biden will preside over the count.
Lawmakers can technically object -- in writing, with objections signed by at least one House and one Senate member -- to individual electoral votes or entire states' results. If the House and Senate support that objection, the vote or votes in question are thrown out. But that has never happened.