My late father, gone many years, told me many times that in the early 1920s, about the sheriff's cars picking up ballot boxes after the election to deliver to the county elections office to be counted. Somewhere along the route back, the deputies stopped, opened the boxes, and the boxes were stuffed with additional paper ballots favoring the incumbents. The feds find out about it and several of the accessories went to jail. No telling how long this went on before it was found out. The fact is that the incumbents couldn't be voted out. After the feds came in, the incumbents went out, some of them to prison.
Nothing is fool proof! Absolutely nothing. The integrity of the ballot box is very important and anyone tampering with it should be severely punished.
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