United Srpska president, Nenad Stevandić, formed the party after criticising the Serb Democratic Party for a perceived lack of sufficient nationalism, stating that its representatives on a national level have aimed to "destroy Republika Srpska".[4] During the 9th convocation of the National Assembly of Republika Srpska, Stevandić was a part of the Free Democratic Serb Group, which comprised other right-wing SDS dissidents.
At the 2018 general election, US gained representation within the National Assembly in its own right for the first time. With 3.09% of the vote, the party had four deputies elected. In November 2018, it was announced that US would participate in the governing coalition, alongside SNSD, DNS, SP and NDP.[5]
Natalija Trivić became the party's first minister appointed to the Government of Republika Srpska, serving as Minister for Education and Culture since December 2018.
