Abstract: The paper explores the activities of the party «Citizens» with a focus on its role in the development of the protracted crisis of executive power in Spain. For four years, the country has faced the problem of forming a government: during that period, early national elections were held four times, Spain lived without a government twice. The author studies the peculiarities of ideological image, social support and organizational principles; examines their evolution in connection with the development of crisis phenomena in the social and political life of Spain. Special emphasis is given to analysis of the maneuvers of the «Citizens» at the national and regional levels. It is concluded that the «Citizens» sought to realize their political potential: the party largely determined the process of forming government coalitions. Until 2019, «Citizens» successfully collaborated with two leading forces – socialists and conservatives. The lack of a clear self-identification of «Citizens» contributed to the maneuvering of the party and attracting the attention of the electorate with different political views. The partnership of «Citizens» with opposing forces led to a serious internal party crisis, as a result of which the party lost its political weight at the national level. In the period of the crisis the «Citizens» managed to become an integral part of the political system and determine the general direction of the transformation of the spanish bipartism towards confrontation between the conditionally left and right coalition.