Dr. John Gartner joins Joanna Coles to explain why Donald Trump’s worsening paranoia, erratic behavior, and visible health problems point to a dangerous mix of malignant narcissism and possible frontotemporal dementia. Drawing on clinical practice and the shift toward observable diagnostic criteria, Gartner argues that Trump’s public performances reveal more than enough: the “25th time” fixation, the aspirin theories, the right-side weakness, and the drifting, rambling speeches. The conversation ends with a stark question: What happens when a country is governed by a man whose greatest vulnerability is his own deteriorating mind?