I don't know if he was referring to telling the story ... or that subordinates are working to undermine him (according to the story).
In the second case, at the least it would be gross insubordination. ("willful or intentional failure to obey lawful and reasonable request of supervisor.") I know, I know. You may say that the request wasn't "reasonable". But courts take a very wide view of what is "reasonable", especially where government is concerned. (EG: cops shooting unarmed blacks)
And though it wouldn't legally be treason in the US ... it would fit the dictionary definition. ("the act of betraying someone or something")
So folks who cheat on their spouses are treasonous then? Or kids who cheat on tests? Or those who cheat on taxes? "The act of betraying someone or something" would then happen every day zillions of times whenever anyone lies. When you lie you betray the trust of the person to whom you tell the lie. Right? I think that definition is rather broad and stretched too thin personally Walt. Thank you for your reply m'dear! :)