Madison WI. 10/5/18 pics taken around 4:30 PM. 4 buses with police escort, headed from near Madison Airport to west side Madison. I was towing a car and couldn't follow to destination. Unmarked Black Dodge in front, and WI State trooper at rear of 4 buses. Police posted along route? Saw a few. Protestors being bused in? Was too weird not to share, and I was in between the 4 buses.