Vladimir Putin’s call with President Trump reinforced the Russian leader’s view that Moscow and Washington should decide the fate of Ukraine — and other weighty matters. By Anton Troianovski ...

President Trump’s admiration for President Vladimir Putin of Russia has been endlessly dissected, but the American leader’s policy shifts since taking office again could have profound effects.

Putin of Russia, characterizing it as the beginning of a negotiation to end the war in Ukraine. It was the first confirmed conversation between the two men during Mr. Trump’s second term ...