In 1991, Jan Olszewski from Centre Agreement gained the support of Wałęsa for his candidacy for Prime Minister, forming a PC-led government.

[3] The party stood out through its economic program as it supported social market economy and was unique in the post-Solidarity front in its negative approach towards the neoliberal Balcerowicz Plan.

These ideologically diverse entities were united by their critical assessment of the policies of Tadeusz Mazowiecki's government, hence Lech Wałęsa became their natural ally, who in turn also gave his support to the newly established party on 11 June 1990.

This alliance was accompanied by slogans on the dynamisation of the systemic changes, with demands for the fastest possible free elections, both parliamentary and presidential, as well as the reconstruction of the economy, by which they meant privatisation and demonopolisation.

[13] The creation of the Agreement of the Centre coincided with the beginning of the so-called "war on the top" amongst Wałęsa and the rest of the post-Solidarity cabinet.

The day after the conference at which the establishment of the party was announced, Lech Wałęsa expressed his approval for the existence of differentiation in the milieu of the former opposition.

After the parliamentary elections of 27 October 1991, party-presidential disputes over the candidate for the post of Prime Minister began, which lasted for almost two months.

[10] As a result of the Centee Agreement's opposition to this proposal, on 8 November 1991, Wałęsa entrusted the mission of forming a government to Bronisław Geremek.

During the deliberations of the Democratic Union Political Council, on 15 March 1992, members of the Right Fraction were strongly in favour of talks with Prime Minister Olszewski, Jan Rokita, Andrzej Celiński and Zofia Kuratowska were among the opponents.

[10] A period of meetings and consultations, lasting more than a month, began between representatives of the coalition and opposition parties originating from the August movement.

Politicians were driven to conclude a grand coalition by declining public support for reform, but the insurmountable difficulty seemed to be the issue of parity in the distribution of ministerial portfolios.

The agreement was hampered, for programmatic reasons, by peasant groupings for whom the liberal strands of the economic programme of the Democratic Union and KLD were unacceptable.

Representatives of the 'small coalition' (Democratic Union, Liberal-Democratic Congress and Polish Economic Programme) were informed of the cancellation of the joint deliberations.

On the night of 27-28 May 1992, the "small coalition" (UD, KLD and PPG) agreed that a vote of no confidence in the government would be tabled at the next sitting of the Sejm on 4–6 June.

The President considered that the actions taken by Macierewicz could jeopardise the internal security of the state and, as a matter of urgency, submitted a motion to the Sejm for the dismissal of the Prime Minister.

During an evening meeting between Wałęsa and the presidents of the main parliamentary clubs (apart from the PC and the Democratic Left Alliance), it was agreed that Waldemar Pawlak would become the new Prime Minister.

After attempts to block the vote and the Prime Minister's dramatic evening speech on both television channels, the Sejm dismissed Jan Olszewski's cabinet on 5 June 1992.

In 1998 PC MPs joined forces with the Party of Christian Democrats, within the parliamentary group of Solidarity Electoral Action.

On the other hand, however, it was an electorate rather dissatisfied with the economic situation prevailing at the time, ambivalent towards the market economy as well as opposed to supporting the development of private companies.

The author of the report argued that the Centre Agreement was becoming a populist party, bringing together people who were dissatisfied and averse to private property, especially when its beneficiaries were only a small part of society.

(…) The role of the Catholic Church is of immense importance to the build up of our moral system, bitterly attacked by the left-wing post-communist environment.

Centre Agreement advocated for a balanced approach to reforms, speaking against the calls to make the Polish economy competetive and integrate it into Western markets.