Erdogan campaign rally in Istanbul draw enormous crowd An enormous crowd attends a campaign rally held by Turkish President Recep Tayyip Erdogan in Istanbul. The vote in Istanbul, with a population of 15 million out of Turkey's 80 million, will be a major test for Erdogan's party to consolidate its power. IMAGES of Erdogan at the campaign rally AND SOUNDBITES from AKP supporters*COMPLETES VID1322827_EN*