https://www.npr.org/2020/05/28/86441...mail-in-voting
quote: inteview
CHANG: Some of your Republican colleagues say that mail-in voting creates more of a risk for fraud because you can't verify someone's ID in person. How would you respond to that?
WYMAN: Well, that's not been our experience here in Washington state. First and foremost, we've had voter ID at the time of registration since 2006 in our state, so we actually do have an ID check. And beyond that,
we did a comparison in 2018 of voting history, and we found that about .004% of our voters did, it appears, try to vote fraudulently. They voted for someone else who had passed away, or they voted more than once. And that was 142 people out of 3.2 million ballots cast.
CHANG: Is that rate of fraud any higher if you compare it to when Washington State wasn't using a mostly mail-in system?
WYMAN: I think that they're comparable. I don't think a polling place system is perfect, and I don't think a vote-by-mail system is perfect. And let's face it. No level of fraud is acceptable. But you can build in security measures that keep it very low, and I think that's what we've done successfully here in Washington.