RE: Crack in the wall???
What we really need is for ONE, just ONE state Domino to fall and the others will follow suit. It might as well be PA as this is the state with the largest number of Electors.
What you really need is for just one court to rule that the election in one state was too fraudulent to be considered valid. If one court would do that then that would give the legislatures the cover they need to appoint a competing slate of electors. Until one court does that then not a single legislature will act.