Cotabato City
Further, the High Tribunal had to render judgment on "whether COMELEC Resolution No. 7902 is valid for maintaining the status quo in the first legislative district of Maguindanao (as “Shariff Kabunsuan Province with Cotabato City [formerly First District of Maguindanao with Cotabato City]”), despite the creation of the Province of Shariff Kabunsuan out of such district (excluding Cotabato City)."