Trump is unable to deal with his own emotions. He cannot handle rejection. He doesn’t understand not getting his own way because until now he’s been able to lie and cheat and bully his way towards getting whatever he wants. He has failed a million times but he’s never had to face it or deal with it. He cannot process facing his own failure and he is unequipped to deal with it like an adult. Instead we see him lashing out and telling more lies, trying to whip up even more division and hatred and anger than he already has in the last 4/5 years. He also doesn’t understand how this makes him look. All he’s concerned about is getting what he wants, he has no idea that behaving like a spoiled little bratty 3year old when he doesn’t get his own way makes him and America look so weak and pathetic.