"No he is not"? That's all you've got?
Let's look at the evidence. He is on film, in his first speech after his inauguration, saying -
"I was explaining about the numbers. We did a thing yesterday, the speech - did everybody like the speech? You had to like it, so I've been given good reviews - but, but we had a massive field of people, you saw them. Packed. I get up this morning, I turn on one of the networks, and they show an empty field. I said "wait a minute". I made a speech. I looked out. The field was - it looked like a million, a million and a half people. They showed a field where there were practically nobody standing there. And they said "Donald Trump did not draw well". I said "It was almost raining. The rain should have scared them away but God looked down and he said "we're not going to let it rain on your speech."" Fact is. When I first started, "oh no", the first line, I got hit by a couple of drops, and I said "oh, this is too bad but we'll go right through it". But the truth is that it stopped immediately, it was amazing, and then it became really sunny and then I walked off and it poured right after I left. It poured but, you know, we have something that's amazing because we had, it looked, honestly, like a million and a half people, whatever it was, it was, but it went all the way back to the Washington Monument. And I turn on the thing and by mistake I get this network and it showed an empty field. And it said we drew 250,000 people. Now that's not bad. But it's a lie. We had 250,000 people literally around you know in the little bowl that we constructed, that was 250,000 people. The rest of the you know 20 block area all the way back to the Washington Monument was packed. So we caught them, and we caught them in a beauty, and I think they're going to pay a big price."
Those are the words of a man who is so narciscistic that the preservation of his own ego is more important than the truth, and more important than his role as President of the United States.
People that are crazy don't accomplish what he has done. I guess I have different definitions of crazy. Most crazy people can't accomplish the daily tasks of basic living like cleaning themselves, washing clothes or cooking a meal. What is your definition of crazy.
"According to the DSM-5, individuals with NPD have most or all of the following symptoms, typically without commensurate qualities or accomplishments:[8][11]
1.Grandiosity with expectations of superior treatment from others
2.Fixated on fantasies of power, success, intelligence, attractiveness, etc.
3.Self-perception of being unique, superior and associated with high-status people and institutions
4.Needing constant admiration from others
5.Sense of entitlement to special treatment and to obedience from others
6.Exploitative of others to achieve personal gain
7.Unwilling to empathize with others' feelings, wishes, or needs
8.Intensely envious of others and the belief that others are equally envious of them
9.Pompous and arrogant demeanor"
https://en.wikipedia.org/wiki/Narcissistic_personality_disorderLet's take another bit of evidence from Trump's CIA speech -
"Time magazine - and I have been on their cover like 14 or 15 times, I think we have the all time record in the history of Time magazine. Like if Tom Brady's on the cover it's one time because you won the Superbowl or something, right? I've been on for 15 times this year. I don't think that's a record, Mike, that can ever be broken, do you agree with that? What do you think?"
That is Trump, in his first full day as President of the United States, telling the CIA how many times he has been on the cover of Time magazine. Twice. Donald, it's the CIA: if they cared they could find out. And you are the President of the United States, why are you still concerned about how many times you've been on the front cover of Time magazine? And why do you think that the number of times you've been on the front cover of Time magazine is something it's important for you to tell the CIA?
Official diagnosis: Narcissistic Personality Disorder so extreme that it is more important to him than the role of President of the United States. Unofficial diagnosis: Bat. Shit. Crazy.