There is simple way to catch the cheaters. Compare the voting rolls of last year to this year. New registered voters should be checked for illegals (foreigners) who have no business voting.
Segregate those ballots and move to have them not counted. Do not destroy them as they can be used as evidence to prosecute the cheaters including, election officials. Compare the total number of registered voters to the total number of ballots cast. If the ballots cast are more than the registered voters in the voting rolls, that is fraud! They created ballots out of thin air. Possibly, just filled out blank ballots with votes for Democrats then, mixed it in with the rest of the valid votes! And let us get real, there is no 100% turnout. Never have so, that is another clue.