Jimmy Carter predicted that mass mail-in voting would lead to rampant fraud, undermining the integrity of all elections.
This video proves how likely it is that people are stuffing ballot boxes through mail-in collection boxes. No postage needed, and easy enough to collect blank ballots in trash cans, dumpsters, or through "harvesting." And if someone with access to blank ballots (gov't employees, truck drivers, printing companies), it's not crazy to consider how many would be open to bribery or just feel driven to help their candidate win (or the other candidate lose).