It is fair to say that the Russian secret state succeeded in getting worryingly close to serious political leaders in the United States, Britain, Germany, France and Italy. Time and again the Kremlin turned Western democracy into a game of matryoshka dolls. Lift out the Donald Trump or Nigel Farage or Jeremy Corbyn or Matteo Salvini or Marine Le Pen dolls, and you come face to face with Vladimir Putin – smirking at you.