Turkey's President Recep Tayyip Erdogan addresses cheering supporters after unofficial referendum results were announced, in Istanbul, late Sunday, April 16, 2017. Turkey's main opposition Republican People's Party leader Kemal Kilicdaroglu has raised objections to the actions of the country's electoral board in the conduct of Sunday's referendum on whether to expand the powers of the president. (Yasin Bulbul/Presidential Press Service via AP)