Ben Carson wrote in his book that he has a pathological mental illness. How would you describe that condition to a large audience, many of whom may not understand the terms?
Ben Carson did no such thing. You made it up. Carson said he had a pathological temper. But nowhere did he say he had a mental illness.
It's funny how you first denied Trump said what he said, then try to justify him saying it by making up something about Ben Carson that isn't true.