▁and ▁Str ateg ic ▁Research . ▁ ▁In ▁ 1 9 9 3 , ▁he ▁began ▁advis ing ▁the ▁founder ▁and ▁chairman ▁of ▁Y eni ▁Parti ▁( New ▁Party ). ▁The ▁party ▁was ▁established ▁to ▁carry ▁out ▁the ▁" second ▁transformation ▁program " ▁of ▁former ▁President ▁T urg ut ▁Ö z al , ▁who ▁had ▁aim ed ▁to ▁establish ▁an ▁executive ▁presiden cy ▁with ▁constitution al ▁powers . ▁ ▁In ▁ 1 9 9 7 , ▁Den eme ç ▁was ▁appointed ▁deput y ▁secretary - general ▁of ▁the ▁State ▁Pl anning ▁Organ ization . ▁Short ly ▁there after , ▁he ▁became ▁the ▁acting ▁secretary - general ▁of ▁the ▁organization . ▁He ▁served ▁on ▁the ▁technical ▁board ▁of ▁Turkish ▁Stand ards ▁Institution . ▁ ▁In ▁the ▁form ative ▁period ▁of ▁Justice ▁and ▁Development ▁Party , ▁leading ▁up ▁to ▁its ▁first ▁national ▁election ▁lands lide ▁victory ▁in ▁ 2 0 0 2 , ▁Den eme ç ▁was ▁co - found er ▁of ▁the ▁party ▁and ▁ad visor ▁to ▁the ▁party ▁chairman , ▁Re cep ▁T ay y ip ▁Er do ğ an , ▁who ▁would ▁later ▁become ▁the ▁President ▁of ▁the ▁Republic ▁of ▁Turkey . ▁He ▁served ▁on ▁the ▁party ' s ▁board ▁from ▁ 2 0 0 1 – 2 0 1 5 , ▁and ▁as ▁its ▁vice ▁chairman ▁in ▁charge ▁of ▁research ▁and ▁development ▁for ▁ten ▁years . ▁He ▁was ▁elected ▁from ▁An k ara ▁as ▁a ▁member ▁of ▁the ▁parliament ▁for ▁three ▁consecutive ▁terms , ▁from ▁ 2 0 0 2 –