How do these thoughts you have make any sort of sense?
I mean that sincerely.
If it were actually corrupt, why would he use it? He could just go to the polls. Like anyone else. Do you use systems you believe to be wrong/erroneous/corrupt? Or do you say, "Yeah, I'm not doing that." and go about it a more secure way?
I need you to come to a good – not a complete – but good understanding of how the state where you live handles mail-in ballots and how the state makes sure it's a legal vote.
Because there's a whole ass process.
Then, once you've done that, explain why a President has any authority to take over federal elections. Because the Constitution clearly lays out that it is each individual states domain to govern the process of an election. The President has no authority to be involved at any level.