Instead of waiting too long and then just reacting, preempt what's evolving by signing The Pledge to Safeguard the Election (https://sign.moveon.org/petitions/pledge-to-safeguard-the-election) which demands that election officials and office holders abide by modern electoral processes or else threaten to hold them severely accountable on this single issue in future elections if they don't.
We have heard for four years how “what Trump is doing is unprecedented” (and didn’t believe that he would actually do most of it) as he has done one unbelievable thing after another.
We didn’t believe that he wouldn’t concede the election, but he hasn’t. How far does this process have to go before people take what he is doing as the serious danger to our democracy that it is?
Our constitutional institutions remain strong because we proactively USE them.
The inaction of the bulk of the Republican establishment regarding these events is stunningly appalling. But the pressure on Republican politicians shouldn't just be coming from Trump voters - it should be coming from the entire electorate (including some Trump voters) to make them follow modern electoral procedures (which would basically lead to the popular will from within EACH STATE being expressed faithfully in the Electoral College). We should make Republicans terrified of something much larger than Donald Trump: that we - especially Independents and moderates - will defeat them ON THIS SPECIFIC ISSUE in future elections if they don't follow contemporary electoral procedures in the current one.
The above means that the election would not be overturned by state legislatures or governors and thrown to the Congress; and certainly that martial law would not be enacted and a new election held.
Instead of street demonstrations or a new election, we the people can re-express our will by petitioning our elected officials to abide by the the results of the 2020 election – and hold them severely politically accountable for not doing so.