ISTANBUL, TURKEY - MAY 30: Supporters of Turkish President Tayyip Erdogan and Prime Minister and leader of the ruling Justice and Development Party (AKP) Ahmet Davutoglu wave national flags during a ceremony to mark the 562nd anniversary of the conquest of the city by Ottoman Turks on May 30, 2015 in Istanbul, Turkey. Erdogan has reportedly been criticized by the opposition parties for campaigning in favor of the ruling Justice and Development Party (AKP), a party he co-founded, even though as head of state the constitution bars him from party politics. Turkey will hold a general election on June 7, 2015 to elect the 550 members of the Grand National Assembly. (Photo by Gokhan Tan/Getty Images)
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