IN A WEEK confirming the cruel truth that only one person can become prime minister, a play about Britain’s PMs made room for simultaneous incumbents. The Audience, imagining the weekly visits by British prime ministers to Buckingham Palace, has achieved a double with overlapping openings in New York – where Helen Mirren is reprising the performance as Queen Elizabeth II she first gave in the 2013 West End premiere of Peter Morgan’s play – and London, with Kristin Scott Thomas taking over the role in a revival of the original production.Success on both sides of the Atlantic attests to its popularity. But I voted with the nays first time round and felt an even stronger dissent this time. Morgan, whose real-life characters have mainly been unavailable for interview t