One possible explanation is that he suffers from Borderline Personality Disorder (BPD) (also known by the descriptive name Emotionally Unstable Personality Disorder). Those with BPD are constantly trying to control the bubbling cauldron of intense emotions swirling around in their brains. They realize they cannot control their emotions so they have to find some other way to feel in control. They attempt to bring some semblance of order into their lives by aggressively controlling their environment and the people around them. This appears to be the case with Donald Trump.
So profound can be a Borderline’s lack of self-control that a simple question about the logic behind their actions can send them into a fury. Failure to absolutely obey their every command can unhinge them. This could explain why so many people have quite jobs associated with the White House and why many others have been fired, silenced, and sidelined. It might explain why everyone is “walking on eggshells” around Trump.