In "Fire and Fury: Inside the Trump White House," author Michael Wolff highlights the growing concern among staff members regarding Donald Trump's mental acuity. Many observed that his speech patterns had become more disjointed, with repetitive phrases and a noticeable decline in his focus. This deterioration has raised alarms among those around him, who were increasingly worried about his state of mind.

The staff's apprehension stems from their observations of Trump’s communication style, which became erratic over time. His tendency to repeat himself at short intervals and struggle to maintain coherent thoughts indicated a troubling shift in his cognitive abilities, prompting fears about his effectiveness as a leader.