Anti-President Trump protesters who turned up to a Trump rally in Phoenix, Arizona, on Tuesday got into skirmishes with police after they started hurling rocks at them. Police returned fire with tear gas.
In one live-streamed instance [see below], a protester wearing a gas mask kicked a tear gas canister back at police.
But it appears the next canister came a lot faster. Police apparently fired a tear gas canister that hit him in the groin, causing him to double over in agony.