It was standing room-only in a small city hall building in Fort Madison, Iowa, where constituents overflowed out onto the sidewalk for a chance to talk with Iowa Republican Sen. Chuck Grassley, pressing him on their concerns with the Trump administration’s deportation operation, the administration’s tariff policy, and government overreach.

Someone shouts, "Hands up!" Then a loud noise is heard, and the officer is seen holding a stun gun with the electric field pulsing toward the corner of the room. People in the crowd cheered.