Theres a trump march at my city which im in, but some highschool kids who WE know with absolute certainity do not like trump came to our rally, brought some kind of speaker (like a boombox but it connects with the phone) played some kind of hitler music, and did seig heil and had red bands around them with nazi symbols, we were getting a lot of honks from people before they came but once they were seen it seemed like we lost some support, we started yelling at them but they wouldnt go, we called the cops but they left, but by then we had the damage done. I'm afraid next time theyll try and riot and incite violence by wearing trump gear, and then blaming it on us. Pedes, what can I do next time?