If I am not mistaken, the “ballot harvesting” approach (which is legal in California - not sure it’s legal anywhere else in the nation) - allows third parties to collect other people’s ballots and turn them in on behalf of the voters. Previously, only the voters themselves, or someone in the voter’s household, were permitted to do that.
Doesn’t this open the door for various forms of tampering, though? How do you know the third party door-to-door knocker is not substituting their own pre-made ballots in lieu of the real voters’?