[1][2] Notable founders of the Party of the Radical Left include Ivan Zlatić, political activist and the last leader of the SDU and Jovo Bakić, recognized sociologist and a university professor.

This process continued through joint actions of various Serbian leftist organizations and student initiatives from Belgrade and Novi Sad, against violent evictions, as well against the construction of mini-hydro power plants, during 2019 and 2020.

[9] PRL was founded as a political initiative of workers, trade unionists, unemployed and students in Serbia.

Like its predecessor, it regarded itself as the moral and ideological heir of the historical left-wing Serbian Social Democratic Party of Dimitrije Tucović, as well of Yugoslav Anti-Fascist Resistance Movement.

The new party announcing the struggle to build a just economic system, protection of human and labour rights and the existential security of every member of the society, as well making a socialist and secular republic, based on equality, solidarity, freedoms, democracy, internationalism, anti-imperialism, anti-nationalism and anti-fascism, in which people will be more important than profit, with guaranteed free health care and education, gender equality and minority rights.