Since emerging on the national political scene a decade ago, Donald Trump has openly admired the dictatorial style of Vladimir Putin. Trump’s lean toward Russia was investigated, it was psychoanalyzed—yet many were still shocked when recently Trump and Vice-President J. D. Vance berated President Volodymyr Zelensky, of Ukraine, in the Oval Office, and seemed to be taking Putin’s side in the conflict. When Russia invaded Ukraine three years ago, one of David Remnick’s first calls was to Stephen Kotkin, a historian of Russia and a fellow at the Hoover Institution. He speaks with Kotkin again, as Trump is pressuring Ukraine to accept a “deal.” Kotkin doesn’t endorse Trump’s position, but notes that it reflects real changes in America’s place in the world and the limits of American power. “You can say that Trump is wrong in his analysis of the world, you can say that Trump’s methods are abominable,” Kotkin says. “But you can’t say that American power is sufficient to meet its current commitments on the trajectory that we’re on.”