I am sure that we will hear about tampering with the voting process. This is only because the leftist use when they cant win. You wait you will see this on the news.
It's kind of hard to mess with paper and pencil ballots. Not impossible, but a big challenge, even for the determined.
There are also registered scrutineers from any or all interested party(ies) allowed to observe the counting process. Difficulty of shenanigans factor increased thereby.
All ballots are also supposed to be counted twice, by different people.
Recounts do happen, and occasionally might change a result, but it's extraordinarily rare for a recount to change the outcome. Unless you're "Landslide Annie", who was FINALLY turfed this time.