ISLAMABAD: PTI Chief Whip Amir Dogar, shared with National Assembly (NA) Speaker Ayaz Sadiq on Monday documents pertaining to the withdrawal of cases concerning PTI’s Omar Ayub and again demanded Pakhtunkhwa Milli Awami Party Chairperson Mehmood Khan Achakzai’s appointment as the opposition leader. The development comes around a month after the NA Secretariat sent a letter to Dogar, seeking details …