Leonid Slutsky, head of the Russian State Duma's international affairs committee, said the resumption of US missile supplies to Ukraine would be a step back, but it would not change the situation on the front lines. Mr. Slutsky said that if Mr. Trump really wanted to make progress in mediating the situation in Ukraine, he should "show his fist" to the Ukrainian authorities, rather than promising a second round of sanctions against Russia. He also said it was too early to talk about Russia's resp...