PoliticsEnergy in spotlight as Recep Tayyip Erdogan battles to retain power in TurkeyCountry’s increasing status in energy sector puts European security of supply and relations with Russia in focusDecisions: A man walks past election campaign billboards of Turkish President Recep Tayyip Erdogan (left) and the main opposition candidate Kemal Kilicdaroglu (right) in Istanbul.Photo: AP/SCANPIXZsuzsanna SzaboOslo