I see stories about how election is rigged or that there are security vulnerabilities and lots of people don’t believe the outcome. Why don’t they just open source everything so that anyone can look at the code and be sure the votes are tallied correctly?
We do, there are very few counties in the US that are actually fully digital (stupid idea IMHO). The majority are paper ballots which are scanned into the machine for fast counting. The original paper the voter filled out is then stored in case it needs to be checked against the machine count for accuracy.