Everyone keeps missing an objective statistical fact: there is a point, as votes roll in, where Trump will, in mathematical fact, win.
Each precinct has only so many voters, each state has only so many precincts, comes a point where the winner gets 270 electors - and no amount of delayed votes can reverse that.
Progressives will scream “all votes matter”, unable to comprehend this isn’t a popular-vote race. Nonetheless, once 270 is achieved, it’s over.
They may have a plan that includes an untold number of "provisional votes". Unregistered voters, in CA anyway, can cast a "provisional ballot" if they aren't listed on the voter rolls. Under some circumstance, these are counted. Should that occur, the number of pre-election registered voters no longer limits the outcome.