The visits of Keir Starmer and president Zelensky to the Oval Office last week were both agonising to behold, in very different ways. We witnessed two examples of how/how not (opinions vary which was which) to approach the court of what is described memorably vividly in David Mamet’s brilliant 1987 film House Of Games (nothing to do with Richard Osman) as ‘The United States of Kiss My Ass’.