 We see it in the blank stare. We see it in the freezing episodes. We see it in the slurring. We see it in the repetition. Those of us that have had loved ones with dementia are familiar with the same stories being retold and retold, even as they remember them or are hallucinating them. This is a president in neurological deficit, and he should not be entrusted with the nuclear codes. Ellen in Baltimore. Good morning, Ellen.