No differences in PDM, all parties share same ideology, says Maryam Nawaz Pakistan PML-N vice-president Maryam Nawaz Sharif speaking during a press conference. Photo: File. ISLAMABAD: PML-N vice-president Maryam Nawaz on Wednesday clarified that there are no differences within the Pakistan Democratic Movement (PDM) and all parties share the same ideology. "We all share the same ideology and the parties in the PDM have the same position which Nawaz Sharif has," she said while speaking to the media in Islamabad. Maryam also said that since the PPP is no longer a part of the PDM, there is no point in discussing it. She went on to say that PPP is neither her priority nor she is competing against it.