Twenty-eight members of the Jakarta Provincial People's Representative Council (DPRD DKI Jakarta) are from the Indonesian Democratic Party of Struggle (PDI Perjuangan).

The Indonesian Democratic Party of Struggle (PDI-P) controlled more than a quarter of the Jakarta Provincial People's Representative Council (DPRD DKI Jakarta) members during the 2014-2019 period. According to the official website of the DPRD DKI Jakarta, 28 out of a total of 106 DPRD DKI Jakarta members were from the PDI-P. The second largest party was Gerindra, with 15 members. In third place was the Prosperous Justice Party (PKS) with 10 members.

Controlling 26 percent of the DPRD DKI Jakarta, the PDI-P held significant influence in determining the leading candidate for Jakarta's top position. Therefore, the PDI-P's decision to nominate a gubernatorial and vice-gubernatorial candidate for the 2017 Regional Head Election was highly anticipated by its political opponents, who were waiting to adjust their strategies accordingly.