But Sir, he didn't maintain it. Otherwise American customs would hardly have asked him to regain it. And nor was any of this about Boris Johnson being an awesome potentate of Her Majesty's Britannic Empire. American Customs didn't know he was a Member of Parliament when they stopped him.
This article was about the unusual "clinginess" of the technical definition of American citizenhood. Not about anything else. I can't see why 97% of posters to this thread are horribly affronted by Boris cutting his purely notional tie with America. He is not an American. He does not live there. Boris likes America and defends it in print - and in the article clearly regards it as the great hope of mankind - despite the inane quirks of its customs office..
Sorry, absolutely got to get home now