A binder? Sounds like a book of planned questions to me! One page per campaign stop.
More insidious is that these planted questions are designed to impute a sense of connection and currency. They make hillary look like she is on the same page as real Americans. Planting questions also has the result of making sure the photo st-ops and speeches stay on the daily campaign message.
I was hoping to hear the question “Bloomers or thongs”, causing nausea in most people from the implanted image of Hillary Clinton in a thong.