. ▁ ▁Party ▁of ▁Private ▁Property ▁did ▁not ▁particip ate ▁in ▁the ▁Ukrain ian ▁parliament ary ▁elections ▁of ▁ 2 0 0 6 ▁and ▁ 2 0 0 7 . ▁ ▁The ▁mer ger ▁of ▁United ▁Centre ▁with ▁the ▁Democratic ▁Party ▁of ▁Ukraine ▁failed ▁to ▁material ize ▁prior ▁to ▁the ▁first ▁ever ▁con gress ▁of ▁United ▁Centre . ▁ ▁United ▁Centre ▁ ▁Vik tor ▁Y ush chen ko ▁Pres iden cy ▁( 2 0 0 8 - 2 0 0 9 ) ▁In ▁February ▁ 2 0 0 8 ▁several ▁prominent ▁members ▁left ▁Our ▁Ukraine . ▁Vik tor ▁Bal oh a , ▁Head ▁of ▁the ▁President ' s ▁Secret ariat ▁res igned ▁on ▁February ▁ 1 5 ▁( to ▁lift ▁the ▁issue ▁of ▁the ▁correlation ▁between ▁the ▁authorities ▁as ▁the ▁President ' s ▁Chief ▁of ▁Staff ▁and ▁as ▁a ▁member ▁of ▁the ▁O U - PS D ▁pres id ium ). ▁Roman ▁Bez sm ert ny , ▁high ▁ranked ▁party ▁official , ▁along ▁with ▁people ' s ▁deput ies , ▁My kh ay lo ▁Pol yan ch ych , ▁I hor ▁K ry l , ▁Vik tor ▁Top ol ov , ▁O ks ana ▁Bil oz ir ▁and ▁Vas yl ▁P ete v ka ▁res igned ▁on ▁February ▁ 2 0 , ▁in ▁a ▁joint ▁statement ▁the ▁declared ▁that : ▁" some ▁of ▁the ▁leaders ▁of ▁the ▁party ▁play ▁their ▁own ▁game , ▁coming ▁from ▁personal ▁interests ▁and ▁it ▁has ▁nothing ▁to ▁do ▁with ▁responsibility , ▁pl ural ism ▁and ▁norm s ▁of