الجبهة الديمقراطية لتحرير فلسطين
In the lead up to the 2021 Palestinian legislative election, the PPP took part in negotiations with the Popular Front for the Liberation of Palestine, Palestinian National Initiative, Democratic Front for the Liberation of Palestine, and the Palestinian Democratic Union, to form a joint leftist list for the elections, however differences between the PPP and the PFLP caused the negotiations to break down.