The absentee ballot scams

 Epoch Times:

Fraudulent mail-in ballots and dirty voter rolls could spawn a series of messy elections around the country, experts fear, saying their threat to election integrity can’t be underestimated.
...

“The whole problem with mail-in ballots or absentee ballots is that they are the only kind of ballots that are voted outside the supervision of election officials and outside the observation of poll watchers,” Spakovsky said.

Ballots thus become susceptible to theft and can be altered, Spakovsky said. Voters can also be “pressured and coerced in their homes” to vote a particular way. Election officials inside a polling location help prevent this kind of fraudulent action from taking place.

“No one can intercept ballots between the time voters mark them and put them in the ballot box—but all that changes with mail-in or absentee ballots,” he said.
...

According to Spakovsky, another election vulnerability comes in the form of “vote trafficking”—when “third-party strangers” are allowed to go to voters’ homes to pick up ballots and deliver them. This is commonly referred to as “vote harvesting.” This practice “gives the ability of candidates and paid political operatives who have a stake in the outcome of the election to handle something very valuable—the ballot,” he said.

One example is the 2018 election in North Carolina’s 9th Congressional District.

“A hired political consultant and his staff went out collecting absentee ballots from voters, forging signatures, and changing and altering ballots,” Spakovsky said.

As a result of this illegal ballot harvesting and ballot tampering operation, the election was overturned.
...

There is video evidence of vote harvesting and the use of drop boxes in the Georgia Presidential and Senate race elections. One of the problems with vote harvesting is that there is nothing to keep the harvester from throwing away ballots that vote for candidates the harvester opposes.  there is also no way of knowing whether the ballot was altered.  One of the ways Democrats harvest ballots is at nursing homes where the person may not know what they are doing.