Turkish President Recep Tayyip Erdoğan and opposition leader Kemal Kılıçdaroğlu appear to be headed to a runoff as preliminary results show neither candidate reaching the majority of votes needed to win Sunday's election outright.
Why it matters: Many analysts see an expected head-to-head contest between Erdoğan and Kılıçdaroğlu as a hinge point for democracy in Turkey.