ISLAMABAD: Pakistan Tehreek-e-Insaf (PTI) leaders Omar Ayub and Shibli Faraz, who are the leaders of the opposition in the National Assembly and the Senate respectively, have filed a petition in the Islamabad High Court (IHC) challenging the delay in appointing a new chief election commissioner (CEC) and two members of the Election Commission of Pakistan (ECP), The News reported.. The petition names the federal government, the Senate chairman, the National Assembly speaker, and the ECP as respondents. The petitioners argued that the tenures of the CEC, as well as the ECP members from Sindh and Balochistan, have expired, and that the delay in fresh appointments is in violation of the Constitution. The petitioners requested that the court should maintain that the prime minister.