Thanks, TIL, though it’s actually superseded by the 12th amendment as another commenter noted, but contains the same text.

Looks like the Blue states could not show up to the vote and prevent a quorum, which should stop the vote:

in choosing the President, the votes shall be taken by states, the representation from each state having one vote; a quorum for this purpose shall consist of a member or members from two-thirds of the states, and a majority of all the states shall be necessary to a choice. And if the House of Representatives shall not choose a President whenever the right of choice shall devolve upon them, before the fourth day of March next following, then the Vice-President shall act as President, as in the case of the death or other constitutional disability of the President. [emphasis Wikipedia’s]

So we could end up with a President Harris. If the Dems have the courage to stand up to an attempted highjack of electoral votes by the house.