If you want to be a good American, listen to Vladimir Putin and stop criticizing Donald Trump. That’s the “helpful” suggestion the Russian president made Thursday at a foreign affairs conference in Sochi, according to the state-run Tass news agency. “Mr. Trump was elected by the American people. And at least for this reason it is necessary to show respect for him, even if you do not agree with some of his positions,” Putin said, before adding this dig: “Inside the country, disrespect is shown for him. This is a regrettable negative component of the U.S. political system.” Putin then...