At least 20 Trump supporters may have been attacked covertly by chemicals or a high-power laser at a Trump rally in Tucson on September 12. Some victims suffered severe burns. Many were temporarily blinded, with symptoms lasting until today. Others may have been affected but have yet to be identified. The fact that all those known to have been affected were sitting on the stage immediately adjacent to President Trump is important in understanding the significance of what happened. The victims were all part of a “Latinos for Trump” group on the stage. President Trump shook hands with them as...