The behavior of state-level Republicans raises an interesting possibility. Up to now, I assumed the Democrats rigged it unilaterally and Republican state legislators would go ballistic because they'd know they'd be next if this level of rigging was allowed to stand.
However, consider the following. A bunch of high-level Republicans and Democrats have a deal. The high-level Republicans don't like Trump. The Democrats probably know that AntiFa and BLM riots need to be suppressed because even normies know something is wrong if their city gets burned down. We know they fucking hate people like AOC talking about socialism and defunding the police. What they all want is a neoliberal regime. Woke capitalism basically. Sweatshops in China, and with illegal immigrants in the US but a rainbow flag during pride month and bans for anyone dumb enough to not see that there are some things you don't question.
So the elections were not rigged down-ballot because the down-ballot Republicans are in on the deal. The heads of the state legislatures will certify because they're in on it too. What will happen in Georgia? Maybe the Republicans get that in return for giving up the White House? The midterms will produce a carefully balanced house - literally 50:50. So the Republicans have some way to enforce the deal because they get to keep the Senate and the house is split. Republicans would probably know how many Democrat legislators would back things like the Green New Deal or court-packing and they'd know those have no chance of passing. And they've got the Senate in case something terrible happens.
If this were the case I'd expect the new regime to be a carefully bipartisan technocratic one that doesn't really achieve anything. Woke scraps will be thrown to the left but capitalism will continue to shaft normal people. Immigration and free trade will be pushed. Bipartisan groups will work out careful chess moves to play against China - carrier battlegroups will prowl the seas and US allies will be bolstered. In Europe, NATO will announce that the US is back, baby, with more commitment to oppose Russian expansionism. One interesting thing about this is that you'd see the more strident members of each party decommissioned, a bit like the US and USSR decommissioned their intermediate-range nukes towards the end of the cold war. So when AOC said she 'might leave politics' she wasn't kidding. Her next primary will end with her losing to stuffed ballots to some DNC apparatchik and she knows it. Similarly, all the Republicans who cast doubt on the 2020 'election' will get primaried and will lose, with varying degrees of legitimacy. So the reason the entire Republican party seems to be hedging its bets is that they all sense that the fix is in for this election and if you cast any doubt on the legitimacy of the process you're gone next primary or next election. Conversely, if you hedge your bets a bit you might benefit from the new, post-democratic order.
So what you've got is a compromise. It's just it's the Compromise of 2020 arranged pre-election, not a compromise of 2021 arranged before it.
Would it work? I'm not convinced. Suppose the Democrats break the deal and win control of the Senate? At that point, the Republicans know they've been screwed. Or if the Democrats rig the midterms. The regime requires that two parties that absolutely hate each other have a core of people who are willing to work together.
Incidentally, Newsmax has a parade of Republicans saying 'fight it out in court but if you lose move on'
https://www.youtube.com/watch?v=39WrSskl3XE