All opposition parties must unite under a single banner if they are to persuade Malaysians to support them in the GE15, three Pakatan Harapan (PH) MPs said Segambut MP Hannah Yeoh, Petaling Jaya MP Maria Chin Abdullah, and Senator Raj Munni Sabu said in a joint statement that the 105 MPs who last week declared their support for Opposition Leader Datuk Seri …