A House contingent election (This is probably the most likely of the bunch. It still will not happen.)
Eh, NE-2 isn't going to vote for Trump this year. Not that a one vote electoral college victory would be a good outcome either.
Provided Nebraska doesn't switch to winner-takes-all, which their governor still hasn't given up on.
He has. He's saying that he'll call a special session to do it "if it has the votes" so that mentally challenged people like Charlie Kirk will stop giving him crap over it.