[MichaelBurge]

I personally am less worried about individual voter fraud, and more worried about fraud at the county level. Perhaps in a small county with fewer safeguards, someone could throw out 10% of the paper ballots. Or the voting machines could have errors that discard votes. It'd be nice to see something that can be end-to-end validated.

In Oregon, we do vote-by-mail. You have to register ahead of time, and you can receive an email when your ballot is sent and when it is received. That seems like enough to protect against people dropping ballots. Invalid ballots are different, but it might be rare if what you're saying is correct. I don't trust any other states, but Oregon at least seems to be run fairly well.

Ultimately, it's up to the citizens of each state to decide how stringent they want their state to be.