It sounds like he’s part of the Strong Man party and cannot be allowed to be wrong. I don’t think it’s purely political, some people just can’t be reasoned with.
It's been eye opening to see and recognize such people on the internet over the past 10 years or so. It's been a lot more scary to be able to recognize the same character flaw in real people I'm physically around.
I highly recommend this [1] book on the topic as we navigate a post-truth world. The Narcissist's Prayer is also worth a read [2].
It's not all narcissism though; it can be difficult to reason with deeply ingrained belief systems when there is a lack of critical thinking and challenges to the Id and ego, not to mention innate tribalism.
EDIT: Agree with the deleted comment that The Narcissist's Prayer could also be The CEO's Prayer, based on the personality type the C suite attracts [3].
> First, let me get this Donald Trump issue out of the way: If you’re thoughtful about it and show some real awareness of history, go ahead and refer to Hitler or Nazis when you talk about Trump. Or any other politician.
It's been eye opening to see and recognize such people on the internet over the past 10 years or so. It's been a lot more scary to be able to recognize the same character flaw in real people I'm physically around.