For a quarter of a century, Russian media have cultivated a myth of Vladimir Putin’s inspired leadership. State propaganda allows no hint of presidential fallibility. When things go wrong, official news ignores the setbacks. When problems cannot be downplayed, Mr Putin is portrayed as the wise corrector of errors made by underlings.

Foreign perceptions of Mr Putin have been shaped by this image. It has been boosted online by Kremlin influence operations and embraced by nationalist politicians who admire the Russian president’s methods of domestic control and contempt for the rule of law.

Until recently, Donald Trump was the most powerful figure in that category. The US president is no convert to democratic pluralism but he has become notably more suspicious of Russia and less effusive in his admiration for its president. He has threatened Moscow with tightened sanctions if there is not progress towards a ceasefire in Ukraine by the end of this week. Steve Witkoff, the White House special envoy, met Mr........

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