Oregon has conducted all of its statewide elections entirely by mail since 1998. A Huffington Post article explains how it works:
The process is simple. It’s secure. And it means residents don’t have to worry about leaving their houses and risk getting the coronavirus in order to vote. They don’t even have to worry about putting a stamp on their ballots; Gov. Kate Brown (D) signed a law last year that requires the state to pay for ballot postage.
…There are so many benefits to Oregon’s vote-by-mail system that it’s a wonder why other states haven’t already made mail-in voting an option for every voter, never mind during a public health emergency. The system is simple: Ballots are mailed to all registered voters’ addresses three weeks before each election, along with a pamphlet of information on candidates and issues. Voters mark them, sign them and drop them in a mailbox. Election officials verify every signature ― clerks are trained in forensics and will contact you if your signature doesn’t match ― and tally the results, which are easy to reproduce for recounts. They’re also hard to manipulate, which reduces the risk of foreign interference in U.S. elections.
“You can’t hack paper,” said the governor. “You can replicate and verify the results.”
It’s also cost-effective. Brown said while her state still operates some polling stations, its vote-by-mail elections cost 20% to 30% less than in-person voting because of reduced costs from staffing polling stations and ballot counting systems. Beyond that, Oregon has one of the highest voter participation rates in the country.
Let’s all be more like Oregon.