Violence at campaign rallies is becoming uncomfortably common. So much so, that in at least one instance that was caught on video, two Bernie Sanders supporters actually started to beat up each other before realizing that they both supported the same candidate.

The video, which was taken in San Jose after the Donald Trump rally, shows a few men throwing punches before someone steps in to break up the melee. This person then assures all parties that the man they're assaulting is "one of us" and not a Trump supporter. The group then breaks out into a "Bernie! Bernie!" chant.

Watch here:

Oof. Everyone should just keep their hands to themselves and not assault anybody, regardless of which political party they support. That's not too hard.