It’s not infeasible for Romney to be the President and Biden the VP, if the electoral college ties and the Pres and VP must be elected by Congressional votes.
IF a frog had wings, he wouldn’t bust his butt everytime he jumped.
IF the “new” Senate was majority dem and IF they picked Biteme, he would come up with some good reason to resign real fast. IF it was ever up to the House and Senate, Biteme would likely refrain from consideration and it would go to Ryan.