I believe that tweet is a reference to competing slates of electors in several states. It’s not at all clear that the GOP electors will be considered valid. The Democrat electors would seems to already be certified. Now, this may open a path to a contested election and it may have a payoff. But it is not quite accurate to say that Trump suddenly has 274 EC votes.
I agree. It only determines it is a contested election.
So what happens next per constitution ??