Donald Trump was in a jocular mood as he met with Keir Starmer, barely allowing the Prime Minister to get in a word in edgeways during their joint appearance in the Oval Office. ‘Did I say that? I can’t believe I said that,’ he mused after a reporter queried whether he continued to regard Volodymyr Zelensky as a dictator, only days after he had flayed him as a tinpot authoritarian who might be best off returning to his halcyon days as a television comic.