It is bizarre and worrying, not to mention embarrassing. If Trump can't handle minor "slights" like this, then I have a hard time believing he'll be able to handle more serious problems.
I can't envision any other President engaging in this type of grade-school attack. Just pathetic.
The next four years are going to be a long, painful lesson for America, though I doubt most of his supporters will be able to put their egos aside and admit they were wrong.
Except Trump has responded this way his entire life and he's a billionaire and President of the United States.
I'm not a fan of Trump's temperament or his "flexible" attitude toward facts, but I have to admit it is nice to see someone fight back against an all out assault by the status quo. Some folks may be too young to remember but after George W. Bush lost the popular vote and had an Electoral College win handed to him by the Supreme Court, his Presidential legitimacy was just as questionable as Trump's and there were plenty of people loudly questioning it. But virtually the entire political and media establishment lined up to defend Bush and refute or flat out ignore the people attacking him.
Trump is not only being denied that support, big chunks of the establishment are joining in on the attacks. Even if some of his individual responses to that double standard are wrong and contemptible, I think it's a good thing that he's bluntly confronting it in general.