You seem to have missed the bits where he was informed about them before he attended.Seems clear enough.
"Mr Rees-Mogg said he was “shocked” to learn of the group’s views and insisted he had never been a supporter or member.
“It’s undoubtedly embarrassing. I feel very silly. This was clearly a mistake,” he said. “I try to accept invitations from most people who ask me to speak. I could limit myself to just speaking to Conservative Associations, which would be safe but politics, is about speaking to a variety of views. But I wouldn’t want to be caught out in this way again.”
Searchlight told him and he asked the Tories for confirmation. That wasn't enough, apparently.
Total moron it is, then?
What happened to Hitchens telling people to kill Muslims, by the way? Any confirmation of that?

