The Movement of Socialists (Serbian: Покрет социјалиста, romanized: Pokret socijalista, abbr.

In December 2022, Vulin resigned as the leader of PS after being appointed as the director of the Security Intelligence Agency.

[19] Sociologist Jovo Bakić has also disputed the leftism of PS due to "their support for the nationalistic and neoliberal policies".

[20] Political theorist Srećko Horvat noted PS' participation in the governing coalition's "harsh neoliberal measures, including pension cuts, public sector wage cuts, deregulation and labor market flexibilization" and minister Vulin's direct responsibility for "one of the worst new labor laws" that had been passed in Serbia in 2014.

[21] In 2015, Vulin said that he was opposed to same-sex marriage and that, as minister for social policy, he would never sign a law making it possible.