“Oftentimes when these crimes occur, they’re crimes against others like stealing ballots out of their mailbox, rather than voters committing fraud. The total number of prosecutions is small relative to the number of ballots that are cases,” Rick Hasen, a professor of law and political science at University of California Irvine, told ABC in an April interview. “This is especially true in the five states that use almost completely vote-by-mail systems, at very low rates of fraud. So it’s not a non-existent problem, it’s a real problem but it’s a very small couple,” he said.
Coronavirus muddles competitive House special election in California
ABC News, May 8, 2020
May 8, 2020