Decades of observation and information obtained by speaking with elected and unelected officials. I currently refer to what I call common sense. Ask at your polling place if your ballot is tied to you. I’ll be surprised if the person you direct the question to will know. It took me decades of digging to find out this information
See if you can document this in some manner. I don’t necessarily disbelieve you. If true, this information MUST. COME. OUT.