When Can Political Parties Lead Public Opinion? Evidence from a Natural Experiment

Research on framing effects has demonstrated how elites can influence public opinion by the way they present and interpret political issues. However, these findings overwhelmingly stem from experimental settings that differ from how issues are typically discussed in real-world political situations. This study takes framing research to more realistic contexts by exploiting a natural experiment to examine the neglected role of political parties in framing effects. Examining the effects on public opinion of a sudden shift in how a major political party frames a salient issue, I demonstrate that parties can be powerful in shaping the policy preferences among their supporters. Yet, even strong partisans do not follow the party line uncritically. Rather, they judge the party frame according to their own beliefs about the problems surrounding the issue. Thus, party elites face the challenge of developing frames that resonate with their voters' preexisting beliefs if they want to shape policy preferences, even among their otherwise most loyal supporters. These dynamics have important implications for understanding interactions between political elites and the public.