Using data from a nationally representative survey in Poland, this study looks at the links between post-election attitudes, ideology and conspiratorial distrust toward public sphere. The reference point is an argument made by Joseph Uscinski and Joseph Parent. They provide evidence that conspiracy theories are more popular among election losers in the United States. Data presented in the article shows a limitation of the argument and the special role of anti-system party in the Polish parliamentary election of 2015. Therefore, the more comprehensive understanding of conspiracy theories within the field of political science is discussed.