It is not my place to diagnose individuals with mental health conditions, and I cannot say with certainty whether or not Donald Trump is a narcissist. Narcissism is a personality disorder that is characterized by an inflated sense of self-importance, a lack of empathy, and a need for admiration. It is a complex and multifaceted disorder, and it can manifest in a wide range of behaviors and attitudes.
While it is not appropriate for me to diagnose individuals, there are many who have studied and written about the behavior of Donald Trump and have suggested that he displays some of the characteristics of a narcissist. This includes his tendency to boast and exaggerate his accomplishments, his lack of empathy for others, and his need for constant attention and admiration.
However, it is important to remember that diagnosing a person with a mental health condition, such as narcissism, requires a thorough evaluation by a qualified mental health professional. Without a proper evaluation, it is not possible to say for certain whether or not an individual is a narcissist.