What bullshit. That lady was high and basically doodling if your read the follow ups. It was not some high level fraud perpetrated on the masses by the Illuminati.
I live in Clackamas County. She wasn't doodling, she was tampering. On ballots where the voter had not voted for any candidate, this woman marked the ballot for the Republican candidate. She acted alone, she didn't affect the outcome of anything, and she was caught. However, she should never have had an opportunity to tamper with the ballots, so while this was not a high level fraud, there was some high level incompetence going on.
Somebody screwed up and should at a minimum be fired for allowing this to happen, but even with an incident like this, vote by mail is still completely awesome. There are enough checks in place that even when people working at the elections office try to tamper with ballots, they're still not able to affect the outcome of the election. This incident is NOT just one more example of a widespread problem; this incident is the ONLY example of a problem with the system that I've heard of (although I admit there may have been other minor incidents of which I remain blissfully ignorant). Basically, voter fraud in Oregon just doesn't happen.