[2] The Forum was founded on 27 June 1990, by representatives of different political groupings - members of RPP, several economic, commercial, and industrial councils, academic unions, newspaper editors, representatives of several sejmiks, as well as several major political figures: Senators Stanisław Somma and Jerzy Dietl, Minister Tadeusz Syryjczyk, Deputy Minister Michal Wojtczak, deputy editor-in-chief of Życie Warszawy Tomasz Wołek, Henryk Woźniakowski, Sejm Representative Michał Chałoński and, as a guest, Minister and future FPD leader Aleksander Hall.
The two were crucial allies in Mazowiecki's political battle against Solidarność leader Lech Wałęsa, and supported the Prime Minister's candidacy in the 1990 Polish presidential election.
The humiliated Mazowiecki would resign from the office of Prime Minister on 12 January 1991, which cast FPD and ROAD into de facto parliamentary opposition.
[2] During the first Congress of the FPD on 3–9 November 1990, it elected Hall as its leader, and declared an intention to co-found a larger political formation with ROAD.
[2] On 11 May 1991, the FPD came into agreement with ROAD to form a new political party, the Democratic Union (UD), wherein they would contend the 1991 Polish parliamentary election together.