The Democracy and Solidarity Party has its origins in the autumn of 2015 according to the party's website, which claims that Demos arose "in response to the need to organize the progressive forces, articulating a strong critique of the underdevelopment, inequality and division of the Romanian society". A manifesto published on 15 September 2016 formally created the political party. It was officially registered as such in 1 September 2018. In the
2019 European elections, the party had initially planned to send 21 candidates, but only 16 showed up. As a result, the party used intra-party
deliberation to select a final shortlist of 12 candidates. This process is thought to have improved the presence of women and ethnic minorities. On 24 September 2024, DEMOS,
NOW and
REPER announced an electoral alliance to contest the
2024 Romanian legislative election, the
Platform for Democracy, Prosperity, and Progress. == Ideology ==