Nine members of the far-right Proud Boys group and three protesters are facing riot and assault charges after a street brawl between them Friday night in New York.

The fight wasn’t a random clash, though: The Proud Boys were in Manhattan thanks to an invite from the Metropolitan Republican Club.

In a speech at the club, which was vandalized before the event, Proud Boys leader Gavin McInnes waved a sword at anti-fascist protesters and celebrated the assassination of a socialist Japanese politician. McInnes, a Vice co-founder, dressed up as the Japanese assassin who killed the politician, complete with glasses that made his eyes into a racist caricature of a Japanese person’s eyes.

It was a bizarre event to host at the GOP’s Manhattan clubhouse, but the Metropolitan Republican Club defended McInnes and the Proud Boys after the fight. In a statement released Sunday, the club said McInnes’ speech “was certainly not inciting violence.”

The Republican club’s role hosting the event highlights how the Proud Boys have managed to insinuate themselves with mainstream Republicans, even as they increasingly make the news for their violence. But the New York Republicans aren’t alone—the Proud Boys have already managed to make their way into other mainstream GOP campaign events and conservative media.