The Nevada Democratic convention of May 2016 elicited several serious allegations of unfair, or at least highly questionable, conduct by party officials. But these were not the principal story to emerge from the proceedings, as an altogether different narrative took shape in the national media. Instead, reports of aggressive, even violent behavior from Bernie Sanders supporters dominated the airwaves, with outlets from the New York Times to MSNBC repeating a claim they had “thrown chairs” during the fractious event.

The origin of said claim was local journalist Jon Ralston, who, incidentally, will help co-host tonight’s televised debate in Las Vegas. Though widely reported by parts of the national media, the solitary source for the allegation that Sanders supporters had thrown chairs was a tweet from Ralston, which read as follows:

Convention ended w/security shutting it down, Bernie folks rushed stage, yelling obscenities, throwing chairs. Unity Now! On to Philly 2/2