CHP Istanbul candidate pushes for democracy Turks prepare to go to the polls on Sunday for the country's local elections and the spotlight is on Istanbul after prime minister Recep Tayyip Erdogan declared "The battle for Istanbul is the battle for Turkey."CHP candidate Mustafa Sarigul has underlined the need for greater democracy and an end to Erdogan's rule. Images and soundbites. TO COMPLETE: VID610627_EN