After the resignation of Alexis Tsipras as president of Syriza, and the subsequent election of Stefanos Kasselakis to replace him in September 2023, there was an internal crisis in the party. The internal party groups "Umbrella" and "6+6" criticized Kasselakis's attempt to move the party towards the center. Kasselakis is considered to be more moderate than Tsipras, wanting the party to emulate the Democratic Party in the United States, a social-liberal party.[5] He was criticized by some Syriza members for his previous support of the centre-right party New Democracy, which currently has a majority in the Hellenic Parliament and is opposed by Syriza.[6][7] The 6+6 faction included deputy Effie Achtsioglou, who finished as runner-up to Kasselakis in the leadership election.
On 4 December 2023, the eleven independent MPs announced the name and logo of their new party at a scheduled event.[12] The next day, the parliamentary group was officially announced in the Hellenic Parliament.[13] MEP Dimitrios Papadimoulis announced his affiliation with the group the same day.[14]
On 1 March 2024, the party's founding conference was held in Athens. The foundation declaration summarised the fundamental positions of the party and announced the establishment of a Transitional Coordination Committee with 238 members.[15][16]