Ok .... but even at that it would take a majority (2/3) in BOTH Houses to overturn the election. The House isn't going to vote in Trump's favor.
Supposedly the states in question have sent two slates of electors in order to keep their options open to change. Pence can certainly defer to the states respectively in choosing which of those slates are certified. That's the hole card here.
If that did not happen - If those states in contention did not send two sets of certified electors, then there ain't a dang thing that will prove.