@sai Having lived through the same experience with my mother I fully endorse your comments. Dementia is cruel, not least to those who have to witness the declining mental health of a loved one. Indeed, I often feel that the consequences are far worse for the immediate family than for the patient as they see the character of their relative change almost out of recognition. In the case of my mother I was often told that she was probably, in effect, oblivious of her condition and as she deteriorated she was withdrawing into her own little world. The sad thing is that many sufferers were, in earlier years, highly intelligent. When my mother started declining I remember having conversations with the GP during which he often displayed the greatest of respect for her intelligence.
I do not profess to have much knowledge of Trump’s earlier years and, joking aside, accept that he may well have an underlying high level of intelligence. However, if he is showing early sign of dementia I think we can only hope for the sake of everybody that plans are in hand for such a situation.