Washington State has voted entirely by mail since 2010. Is there any evidence its elections are especially rife with fraud?

Someone points out that there is still an in-person voting option available in each county. But by 2010, all counties had adopted vote-by-mail

The current Secretary of State is a Republican, having won statewide twice during the period of universal mail-in voting

And a Republican just won a House seat in Los Angeles County, in an election that was conducted almost entirely by mail-in voting. The widespread Republican hostility to this method of voting doesn& #39;t seem quite logical to me, even on purely strategic, self-interested grounds

For instance my grandpa definitely would& #39;ve voted for Trump in 2016, but he& #39;s old and no one took him to the polling site, so he didn& #39;t end up voting. (I was away at the time!) If he was sent a ballot in the mail, I& #39;m pretty sure he would& #39;ve voted