March, security will be on top of threats. “Arizona Lion’s Guard” will be patrolling the area to ensure a safe rally and protect Trump supporters from any threats coming from the protesters. Bikers will be wearing American flag bandannas who will be at the ready outside the event to help anyone in need. Once you enter the rally, security will be on hand. The rally will begin at 4 p.m. Doors will open to the Coliseum at 12 p.m. due to the excessive heat warning.