The Trump campaign's main strategy for 2024 isn't to actually win votes. It's to deliberately interfere with the counting of the votes and cast so much FUD on the process that as many states as possible either won't (because they're MAGA-controlled) or can't (because there was genuinely that much disruption) certify their votes. In other words, he wants to file dozens of lawsuits challenging the results again, but manufacture valid bases for them this time. Combine that with the chaos of more Jan 6-style violence, and it's very likely he will succeed in getting a decisive number of swing states decided by the Supreme Court a la Bush v. Gore -- and not only does the Supreme Court have a MAGA majority, three of the fucking "justices" were lawyers on Bush's side in that very court case!
This is why Trump is going around telling his supporters that they won't have to vote anymore after this election, and why he doubled down on it when given the chance to walk it back. He has every intention of so thoroughly destroying Americans' trust in Federal elections that four years from now he will simply make a dictatorial decree that it is pointless to have them and he will simply remain in power indefinitely.
Trump is 100% committed to seizing power and being coronated as America's king, votes be damned.
There is already cheating with gerrymandering and reduced voting areas in specific places in many places, so even if you see lots of activity that suggests a major win for Harris, vote anyway to cover those whose votes will be suppressed. That we even have to plan for that in a country that touts voting as a right is insane.