MOSCOW — A leader of the Russian opposition who has been a vocal critic of what he calls a Kremlin policy of assassinating political enemies has fallen into a life-threatening coma caused by an unknown poison, his wife said on Feb. 6.
The diagnosis of what ailed Vladimir Kara-Murza came at a delicate political moment for the United States and Russia, as President Trump had just brushed aside criticism of Russian President Vladimir V. Putin as a “killer.”
