Over at Mirror Of Justice professor Tom Berg writes about using the historical record in First Amendment religion debates. He starts his second paragraph thus: "To me, though, this begs a further question: why was [Hugo] Black able to draw so much on history about religion?"
So Tom has gone over to the other side. "Beg the question" originally meant assuming what's needed to be proved (a usage he's certainly aware of), but he thinks it's okay to use it as "leading to the question."
I've written about this in the past. I'd rather we followed the historical record.