“but merely a custom.”
That is exactly why it could end up being the speaker of the house sworn in.
Time will tell. But I find it interesting that many here tend to defend this administration.
Political customs are not binding. The Constitution is. Since the electors speficially voted to make Biden VP, he is the VP. How he came to be nominated for that position is irrelevant. According to the Constitution, the only thing that matters is that the electors voted for him.