Actually Golfing Gator has an argument at the very heart of the 2020 election. You can't say the election was fraudulent, thus the results thrown out, and still accept the results for every other candidate. You have to invalidate them all. Which means everybody elected in 2020 in that state, have to be removed from office until they can hold a valid election for those positions.
What happens downballot is up to the States but the federal election was not held. You can't do a thing that is not the thing required and then call it done.
Mailing a letter requires a postage stamp. If I put a sticker from my grandkids sticker book on a letter, it has a stamp but it's not a postal stamp.
If I pay someone to mow my lawn and they don't but they chop down the trees in my yard, they don't get to say they mowed the lawn.
If I pay someone to build me a home but they build a doghouse, they built a house but they didn't build my home.
If someone takes a vote but doesn't follow the rules established by the Constitution, Federal law, and the State legislatures, then they took a vote but they didn't hold the congressional election outlined in the Constitution and the Electoral College electors weren't appointed according to the Constitution and the State Legislatures. They may as well have run into McDonald's and taken a vote from the employees and customers who happened to be there at the time and called it good.
So, Golfing Gator and you are right. There was no legal congressional and presidential election and both need to be thrown out. The downballot candidates are up to the states to decide.
The problem is, as brilliant as the authors of the Constitution were, as much as they thought of everything that might go wrong, even they never considered the fact that an election could be so blatantly and completely stolen. They left us no process or guidelines about how to deal with an election not certified. This was just unfathomable to them.
So we don't know how to fix it. There's no constitutional fix to it. There's no legitimate Congress that can submit to the States an amendment that might fix it.
There are only two paths forward. Either the Constitution is dead and over, completely undone by a stolen election, literally a coup d'état, or we turn a blind eye to the 2020 election, pretending it was legitimate and hoping to do better in 2022 and 2024, and move on with legitimate elections in the future.
Both are terrible choices. Having to accept a lie as truth in order to have any semblance of a nation left, to avoid total anarchy, tyranny, and chaos in the future, is a hard thing but, if we can do it and move back to the Constitution and lawful elections, it is a far better choice than the alternative.
Most patriots who love what America was and love the Constitution, will swallow the bitter pill of a stolen election if order is restored in the next couple but, hopefully, we never forget 2020 and we keep a sharp eye on elections going forward.
If we get past this, hopefully we'll get a constitutional amendment soon to protect elections and how to deal with election challenges and how to undo an election that is successfully challenged.
We need to restore some trust, though, before an amendment. Right now, 70 million Americans, likely far more than that, do not trust the process, not because you say Trump lost, but because the process permitted so many documented and proven violations of election laws.