The purpose of this article is to determine the political conditions of the amendments introduced to the Constitution of Ukraine regarding the modification of the form of rule: 1) to establish the motives of political subjects that aimed at introducing amendments to the Ukrainian Constitution; 2) to grasp the specific political situation in which the modification of the form of rule in Ukraine took place. The following thesis has been examined: 1) that it were the presidents Leonid Kuchma (1994-2005) and Viktor Yanukovych (2010-2014) who had particular aspirations to modify the semi-presidential form of rule introduced in 1996 in Ukraine; 2) that introducing amendments to the Constitution of Ukraine regarding the modification of the form of rule was the result of a political compromise made between the government and the opposition during the socio-political protest in 2004 (the so-called Orange Revolution) and the mass anti-government protest in 2014 (Euromaidan).

The objective of this article is to establish the main goal the leaders of the parliamentary opposition wanted to achieve in the negotiations with the government during the Euromaidan. In this study, the following methods were applied: the historical method, data analysis, and case study. In the conclusion, it is noted that the main task of the parliamentary opposition in the negotiations with the government was to restore the Constitution of 2004, which limited the presidential competences in executive power and extended

The aim of this article is to define the role of the organisations established by the parliamentary opposition during the Euromaidan. The political opposition created the National Resistance Headquarters and the All-Ukrainian Union “Maidan” at that time. In the long term, they were supposed to become a tool for the opposition in the upcoming presidential elections. In the short term, in turn, they were to coordinate the actions of protesters during the Euromaidan throughout Ukraine. In order to achieve the research objective, the historical, systemic, and case study methods were used.