He tried to bring his papers with him, and they were forcibly removed from him. The Chinese propagandists are saying it’s because he had a bathroom emergency. And removing any mention or depiction of it on Chinese social networks. If it was really about a bathroom issue, they wouldn’t have pulled the papers from him. Or had two security personnel drag him.
My guess is that it will be downvoted by thousands of fake accounts here also. This is so huge. But it is currently buried in r/worldnews.
Hu was the direct predecessor of Xi. Served two terms, for 10 years. This isn’t just some party functionary escorted out of a dinner gala.