In a Monday meeting, Mr. Erdogan and Charles Michel, the president of the European Council, agreed to focus on migration and refugees, economic links and the prospect of opening up visa-free travel to the E.U. for Turks, a senior E.U. official said. The official, who spoke on the condition of anonymity to brief reporters, described the meeting as a change to a more positive tone.
Turkey is officially a candidate for membership in the European Union, a status it has held for two decades. The…