In a survey conducted by Public Opinion Research Centre in June 2021, we investigated how people trust political Parties and whether they are willing to take part in elections to the Chamber of Deputies. In the press release, there are two different types of information: the likely voter model and the party preferences. The likely voter model indicates the anticipated result of hypothetical elections to the Chamber of Deputies at the time of conducting the survey. The party preferences give us information about public sympathy for political parties in the group of citizens who have voting right, and there is also included a part of citizens who will not take part in elections, or they do not know who to vote for