This paper aims to critically examine the Indonesian Democratic Party of Struggle's (Partai Demokrasi Indonesia Perjuangan/PDIP) orientation in thought and action. Through media, this article elaborates on several aspects of the PDIP orientation at the level of thought and how it was implemented when PDIP became an opposition and a ruling party. Soekarno's idea, Pancasila (five foundations) of 1 June 1945, was clearly stated in the PDIP Struggle Charter (Piagam Perjuangan) and repeated in the PDIP Articles of Association (AD/ART). Since party documents are a guideline for a party to realize their work programs, the manifestation of the five foundations that Soekarno gave birth should be seen in the PDIP work under Megawati Soekarnoputri's leadership. This paper argues that PDIP is more pro-poor (marhaen) during its tenure as an opposition than a ruling party.