This video is literally nuts. It's an Antifa member fighting with some other people and the whole time this is happening, people are beating the Antifa with a Trump and American flag. They're hitting him with the flag poles, but some of the shots land on the back where the bookbag is.
At some point a guy with no flag pulls the Antifa person out of the fight and sends them on their way and the fight is over. But wow, what an entertaining clip. I didn't know we could use flag poles in battle. Guess we should have a joust next!