One of his main faults is he doesn't strategize for this kind of stuff ahead of time. He was trying to win through turnout beating the margin of fraud, and he underestimated the fraud.
I have no doubt Trump will go down fighting. I have serious doubts he knows how to fight this stuff. He's a genius at media manipulation and marketing, not navigating state level election laws and rooting out corruption. The people around him are good at what they do, including law generally, but I'm not seeing the immediate demands for ballot invalidation that a hardcore fighter should have filed by now.
Mark my words and screenshot this: the minute the counting is "over", those suspicious ballots will disappear into incinerators and will never be seen again.
The election officials will shrug and say "oh no, with all these millions of pieces of paper, a few went missing! It happens, it's a clerical error, no biggie". When Giuliani's gang finally gets around to dramatically announcing a lawsuit to throw some out, when the re-counters and inspectors finally get access to the stash, all that will be left are some legit ballots for them to scan and grumble over. You'll get half a dozen election officials slapped on the wrist for "irregularities", and the DNC will reimburse them the $2000 fine via cash in a brown paper bag.
The ballots that are currently running up the reported numbers will never see the light of day after Saturday of this week. Their totals will never be removed unless you find a court ballsy enough to actually invalidate the election itself.
I hope Trump proves me wrong, but he should be doing some democracy-threatening shit that makes his own side nervous by now. He's still playing nice. I don't just want a fighter, I want one who goes for the kill.