In today's media environment, the flow of incoming information can be overwhelming. Citizens are exposed to both congruent and incongruent information, following each other at a fast pace. At the same time, citizens have the freedom to compose their own daily information diet. This demanding and personalized media environment plays a decisive role in political decisionmaking. One crucial political evaluation is to assign credit or blame to politicians. In this setting of selective exposure and motivated reasoning, we conducted two experiments (N = 1,117) to test how forced versus selective exposure to mixed congruentincongruent news articles and fact checkers on immigration (Study 1) or climate change (Study 2) affects citizens' evaluations of responsibility. The key findings expand extant research that identified partisan biases in citizens' responsibility perceptions: People select and process partisan information in a biased way to reassure partisan identities. A key democratic implication is the prevalence of citizens' defensive motivation when assigning responsibility.
ARTICLE HISTORYIn times of information overload, people are frequently confronted with conflicting messages, or information that is first presented as true but later argued to be inaccurate or 'fake' in nature (Van Aelst et al., 2017). One example of such mixed exposure is the recent surge of fact-checkers as an online journalistic instrument to test the claims made in political communication (e.g., Thorson, 2016). In that sense, fact checkers that debunk claims made in news items offer a relevant case study to understand how citizens evaluate mixed congruent and incongruent news. Against this backdrop, the central aim of this paper is to investigate how people select and respond to mixed reassuring and attacking political information in their daily online media environment.In order to arrive at informed political decisions, citizens have to navigate through the vast supply of congruent and incongruent information, for example when they assign blame. Representative democracy is for a large part founded on the principle of