The behavior is "strange" because he is bringing up the alleged actions of a man who is dead. Grownups with class stop ragging on a person when that person is no longer around.
And by the way, why the dig about McCain's academic record at the Naval Academy? At least, it is known that McCain wasn't a good student. We don't know about Trump's recorcd. For all we know, Trump could have been the class dunce.
He's a 12-year-old in the body of a man who is over 70. It's time he grows up and acts like a real president. That he can't seem to do so makes me wonder if the allegations about his present mental state are true.
@Applewood "That he can't seem to do so makes me wonder if the allegations about his present mental state are true."
You get it. This obsessing over a dead man he wants to hurt won't stop until Trump dies. Years ago, a woman reporter from England rejected him for sex and he sent her nasty messages for 20 yrs., until she told him if he did it again, she would get a lawyer and stop him - then he quit. Trump was married to his present wife when he tried to get the reporter to sleep with him.
Since Trump can't get to McCain, he is attacking the family to try to hurt them. This is aberrant behavior - mentally sick behavior.
In past years, I heard McCain talking about his years at the Naval Academy. He was young, I think 17, when he went there and McCain said he was a rascal having fun instead of turning in work. That did not mean he was not smart, it meant he did not abide by the rules and turn in his work. My guess is he likely skipped classes, too, a rascal would do that.
From Trump's early behavior, I think he had/has a learning disability and has difficulty reading. I believe his grades to be poor due to that (and he had Cohen threaten the schools to keep his grades secret) and he attacked others to bring them down because he could not be on a level with them in reading/learning. He does not read to this day; he has someone read and tell him what it says. From age 2 his father could not handle him. Yes, he did physically attack his music teacher when he was 9 years old. Because he could not be controlled, his father sent him to military school to try to change his behavior. His behavior is still as it was then.
If he doesn't stop attacking the McCain family, it may bring him down by either removal or losing in 2020.
