@Victoria33
All elections or practically all should be checked for accuracy to begin with.
@TomSea @mystery-ak Before an election, if voting machines are used, they are checked for accuracy before the election. Votes are made on the machines, then the machines are checked for accurately counting those votes. When voting machines are passed for accuracy, they are locked in a room with two locks. The election administrator had one key and the sheriff has the other key. Both keys must be used to get in that room.
On election day, the sheriff's deputies delivers the machines to the voting precincts. Then, the judge and alternate judge check each machine to make sure it is set at zero.
At the end of the day, the judge and alternate judge take the disk from the machines and followed by a sheriff's deputy, take the disks to the central counting station. There is a back up disk in the guts of the voting machine and the only way that can be taken out is by an employee of the machine company. That is to insure if there is a contest of the election numbers, those disks can be taken out and compared with the disks turned in.
If paper ballots are used, the count of number of ballots is checked by both the judge/alternate judge. There is a record from them of how many ballots they had to begin with and how many voted ballots they had at the end along with the number of ballots not used. Also, when they get their ballots from the election administrator before the election, there is a sheet with the number of ballots they are taking.
Once they get to central counting, another check is done to make sure the number of voted ballots turned in is the same number they had at the end of the day and the total number of ballots is compared to the total the election administrator gave them. This is done to assure no ballots were added between the end of the day and when they turned them in.
When the paper ballots are run through the machine, any ballot with a problem is kicked out. There is a Resolution Committee that takes those paper ballots to determine what is wrong and fix it if it can be fixed. A new ballot is made for those kicked out, and they are sent back through the machine. Write-in ballots are also kicked out and the committee makes a list of those names and counts them. The Resolution Committee is composed of an equal number of Republicans and Democrats. An example of a ballot kicked out, is the voter drew a line through the ones they didn't want and left the one they wanted without a line through it. The machine can't read that, so a new ballot is made with the voter's choice correctly checked and sent back through the machine.
The general public does not know all this is happening in the background to keep the election fair. They appear to think an election is called and people just show up to do this stuff. A political election is done by the county. If you think your county election is "rigged", read the laws, they are available for your county on line, and then go to your county chairman to find out what he/she does to make sure your county election is being held correctly. Assuming it is all rigged/corrupt is a meaningless charge unless you do your homework to find out what your county does.