A paper trail doesn't necessarily require paper ballets. Electronic voting machines can spit out a receipt to be reviewed by the voter in order to be counted i

A paper trail doesn't necessarily require paper ballets. Electronic voting machines can spit out a receipt to be reviewed by the voter in order to be counted in a potential audit while allowing the electronic tally to be used for initial results. With electronic machines with no paper trail, there is no way to recover from a failed or compromised machine.