This is why they don't clean up the voter registries. Think about which groups are likely to be incorrectly registered:

1. Students who register in college, then move after graduating
2. Young people who change jobs often and have to move
3. Women who marry and change their legal name to their husband's last name
4. The elderly who pass away

In 3 out of 4 of those groups, we see major Dem constituencies, all of which were elevated in early voting. Ballot harvesters were casting votes for ostensibly real and valid voters who did not reside in those precincts and were unlikely to show up to vote for real. In Michigan, they were catching it because it was done so aggressively. People showed up to vote and were told they had already voted.

When we talk about fraud, there's physical fraud and electronic fraud. This type of thing is the baseline physical fraud that swings races 5-10% - and it can be cleaned up with basic election security. Clean the voter registries.