KEY POINTS
  • A win for the opposition on Sunday could set the country in a new direction, presenting a major challenge to Turkish President Recep Tayyip Erdogan and the AK Party's decades-long hold on power.
  • Erdogan himself rose to prominence as Istanbul mayor in the 1990s before later going on to win the presidency.
  • Now he is pushing hard for his party's mayoral candidate Murat Kurum, a 47-year-old former environment and urbanization minister.
As the sunsets, a ferry boat glides across the waters of the Golden Horn with the Suleymaniye Mosque and the city of Istanbul, Turkey in the background. 

Turkish President Recep Tayyip Erdogan once said that whoever wins Istanbul wins Turkey. If that's the case, the stakes are high for Sunday's elections as people across the country of 85 million prepare to select their local leaders and administrators.

Such is the importance of this weekend's vote that political analysts are speculating that a victory for Istanbul's incumbent mayor, the center-left Ekrem Imamoglu, would make him a frontrunner for the Turkish presidency in 2028.