Abstract
This essay explores the role of misinformation from partisan think tanks in distorting policy debates. It argues that there are two dimensions to disagreements in policy debates in a democracy: a normative dimension and a factual. These disagreements are reconcilable, especially when agenda setting mechanisms focus political actors on a narrow range of well-defined problems. Policy debates become unreconcilable when disagreements extend to the factual dimension. The essay then explores the role of partisan think tanks in fostering factual disagreements through misinformation.

![Author ORCID: We display the ORCID iD icon alongside authors names on our website to acknowledge that the ORCiD has been authenticated when entered by the user. To view the users ORCiD record click the icon. [opens in a new tab]](https://preprints.apsanet.org/engage/assets/public/apsa/logo/orcid.png)