After an inconclusive round one, Sunday's vote should decide whether citizens still want President Recep Tayyip Erdogan in charge for another five-year term, and he could have an edge to win.
Turkey's presidential election is headed to a runoff on May 28. The outcome, in this key NATO nation, has implications for the West. President Biden has said he hopes "whoever wins wins."
Neither longtime Turkish leader Recep Tayyip Erdogan nor his main challenger Kemal Kilicdaroglu were able to win more than 50% of the vote. That means Turkey is heading for a runoff on May 28.
Here is a look at the man expected to be the top challenger to President Recep Tayyip Erdogan's 20-year rule in the May 14 Turkish election, and what sets him apart.