Any Biden-come-from-behind win is illegitimate.
I'm not pulling this out of my butt: someone else agrees with me in spirit, if not quite the scenario.
Various scenarios about what happens after the election on November 3rd are out there. The mail-in ballot fraud has been pushed in Nevada and many other states specifically to allow the actual results of the election to be overturned. Many ballots for Biden will be "found" via harvesting if the November 3rd/4th results show Trump to be in the lead. Whatever Election Night brings us, we will be facing a bloody version of the 2000 election dispute.
If Biden (or any other Democrat) becomes president, draconian legislation will strip us of our fundamental rights and forever change America. It will be impossible to ever vote Republicans into power or the presidency ever again. Totalitarianism and anarchy will rule the day.
If Trump manage to retain the presidency, the Left will erupt into violence with the goal of fomenting a Communist-style revolution. Their goal will be to make things so bad (probably by goading Trump into a military suppression of an insurrection) that Democrats in Congress can impeach him with the help of weak-kneed Republicans. Republicans need to maintain their current lead in the Senate (and even gain a few seats) or take back the House to avoid this disaster.
Civil war, anarchy, and tyranny is coming. Just look at the leftist cities to see how they treat right-wing citizens who dare fight back against the mob. Expect to be prosecuted if you use your guns, even righteously in innocent self-defense. Read up on the Spanish Civil War.
Are you prepared for a famine? Food transportation into major cities, especially where rioting is on-going, will likely slow or stop. We will see panic buying and shortages. Jobs will be lost. What happened this winter/spring with the China virus was just a PG-13 preview of the coming horror show. Plan for a worst-case scenario. What we've feared is here. Harden your hearts and prepare.
This isn't doom porn. Anyone who has seen the storm clouds gathering know a hurricane is coming and the only real question is when it arrives and how much of your neighborhood it trashes.