Republican Wisconsin gubernatorial candidate Rep. Tom Tiffany (R-WI) blamed Democratic nominee Milwaukee County Executive David Crowley after a series of youth brawls broke out at the Wisconsin State Fair over the weekend.

Videos posted to social media Sunday night showed a chaotic scene at the fair, with groups of young people running through crowds, fighting, and shouting. At least one police officer was reportedly punched in the face. It was not immediately clear what sparked the chaos.