The USA threads the needle by simply not having verifiable voting. And it turns out it works pretty well. Despite countless hours and lawsuits dedicated to finding people who voted more than once, only a handful of cases have actually turned up.
It's not that there are no checks. You have to give your name, and they know if you've voted more than once at that station that day. To vote more than once you'd have to pretend to be somebody else, in person, which means that if you're caught you will go to jail.
We could certainly do better, but thus far all efforts to defeat this non-problem are clearly targeted at making it harder for people to vote rather than any kind of election integrity.
It's not that there are no checks. You have to give your name, and they know if you've voted more than once at that station that day. To vote more than once you'd have to pretend to be somebody else, in person, which means that if you're caught you will go to jail.
We could certainly do better, but thus far all efforts to defeat this non-problem are clearly targeted at making it harder for people to vote rather than any kind of election integrity.