What would make for "cleaner" elections is to get rid of mail-in ballots (and other methods that invite fraud, etc.) as much as possible and get back to the concept of, if you want to vote, get your ass to a voting precinct and vote. There will always be exceptions for the very, very unfortunate few who are simply incapacitated to such a degree they can't vote in person, but it is a very. very small number. If someone can leave the house to go see family, go to a store, or go get pushed around in a wheelchair around a park, they can get to a voting booth. Period. The key is them actually wanting to vote.