PoliticsYes/no campaigners in IstanbulTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoPoliticsGunnar Köhne03/13/2017March 13, 2017The upcoming Turkish referendum may hand more powers to President Recep Tayyip Erdogan. DW's Gunnar Köhne has looked at the two sides of the debate and tried to find out if the diplomatic rows with European states will have any effect on the vote.https://p.dw.com/p/2Z7H6Advertisement