The supplied article text contains no report beyond a website access message, so its specific claims and evidence cannot be summarised reliably. The headline presents a critical opinion about Randi Weingarten and the teachers’ union, rather than a verified account of events.

Without the article body, it is not possible to establish what convention is discussed, what was said or done, or why the author considers it significant. Any further summary would risk attributing unsupported claims to the article.