Acta Politica Polonica

In 2019, the parties representing the Polish democratic opposition, decided to conclude an informal agreement before the parliamentary elections, called the Senate Pact. This agreement not only increased the chances of gaining an advantage over the ruling party in the Senate of the Republic of Poland, but also – was successfully repeated before the next elections. The author of the article points out that the Senate pact is a completely new and at the same time thoroughly thought-out handout of the democratic opposition, which brought the expected results. He also makes a characterization of the rule of Law and Justice in 2015-2023, which was the main reason for the establishment of the agreement. The thesis of this paper is the statement of the impact of the Senate pact on the advantage of democratic political groups in the parliamentary elections for the Polish Senate. The hypothesis adopted, on the other hand, assumes that prior to the establishment of the Senate pact, there was a real threat of the Law and Justice party’s use of the so-called “legislative express”, which led to the implementation of important laws that hooked on the amendment of the Constitution or harmful bills that were questionable in terms of legal legality. The research method used in the article is descriptive and predictive. Because the subject of the establishment of the Senate pact and its analysis as a novelty in Polish politics, is a relatively new phenomenon, not many scientific studies have yet been written that exhaust the subject of the impact of the agreement on parliamentary elections.