Donald Trump was not. When the leaders of Russia and the United States shook hands on stage after failing to reach a deal at their Alaska summit, President Trump had a look on his face that his four predecessors might have recognized after their own encounters with the former KGB agent who has defied the world in his determination to rebuild an empire.

Russian Foreign Minister Sergei Lavrov held calls on Saturday with his Turkish and Hungarian counterparts, the Russian foreign ministry said, hours after a summit between the U.S. and Russian preside...

Putin expressed optimism, claiming “agreements” were reached and describing Ukraine as a “brotherly nation,” while stating Russia wants to end the conflict.