I received my PhD in political science from the University of North Carolina in 2007. My research focusses on party-voter connections and measurement of political party ideological positions. I am a principal investigator on the Chapel Hill Expert Survey team and a member of the Human Rights Measurement Initiative data team. From 2008-2019, I was a professor of political science at the Unviersity of Georgia. Since 2019, I have been a Reader of Comparative Politics at the University of Essex. Other than party politics, my research interests include Bayesian analysis and measurement theory.