Electronic voting changes the threat model which opens the door for large scale voting fraud which is impossible with the current system. Also in the US you do

Electronic voting changes the threat model which opens the door for large scale voting fraud which is impossible with the current system. Also in the US you don’t have a single election, you have 50 individual elections all with different ballots and different rules, the federal government doesn’t run the elections in each state. This means that you’ll have 50 different systems. There is little that technology can do with a system that already provides transparency by having a physical hard copy of each vote cast and allowing essentially any citizen to become an observer.