Assessing Accountability in a Post-Citizens United Era

Abstract

Greatly increased advertising spending by independent groups represents one of the most dramatic recent changes in U.S. elections. This article moves forward our theoretical and empirical understanding of how the public responds to ads sponsored by candidates as compared to ads sponsored by unknown Super PACs and similar independent groups. In the theoretical section of the article, we establish why it is necessary to measure both backlash and ad persuasiveness to understand overall ad effectiveness and then we develop a series of hypotheses about the likely influence of ad sponsorship. In the empirical section, we undertake the first analysis to date of how the public responds to attack television ads sponsored by unknown independent groups. Using a large-N, geographically representative sample of U.S. adults, we conduct an experiment to assess how sponsorship influences ad effectiveness. We find that attack ads sponsored by unknown independent groups are more effective, on net, than ads sponsored by candidates.