Turkish voters weigh final decision on next president, visions for future

Two opposing visions for Turkey's future are on the ballot when voters return to the polls Sunday for a runoff presidential election that will decide between an increasingly authoritarian incumbent and a challenger who has pledged to restore democracy.

President Recep Tayyip Erdogan, a populist and polarizing leader who has ruled Turkey for 20 years, is well positioned to win after falling just short of victory in the first round of balloting on May 14. He was the top finisher even as the country reels from sky-high inflation and the effects of a devastating earthquake in February.

Kemal Kilicdaroglu, the leader of Turkey's pro-secular main opposition party and a six-party alliance, has campaigned on a promise to undo Erdogan's authoritarian tilt. The 74-year-old former bureaucrat has described the runoff as a referendum on the direction of the strategically located...