Someone on Fox is talking about the difficulties in vetting everyone who has a room in a hotel like the one this event was at. However, when Clinton came to the Rio Grande Valley of Texas while he was president, he decided (not as a scheduled stop) that he wanted to eat at a large Mexican restaurant in Edinburgh, so the Secret Service vetted everyone who was there, making several customers leave. Local opinions weren't very good. One published comment was that because Clinton wanted to eat at a Mexican restaurant, all the Mexicans had to leave.