Ideology and Spatial Voting in American Elections. 2012. Cambridge University Press.

Peer Reviewed Articles

Estimating Individuals' Political Perceptions While Adjusting for Differential Item Functioning. Political Analysis. Forthcoming.
[Online Appendix] [Replication Materials]

Modeling Spending Preferences and Public Policy. Electoral Studies. 45:115-172.

(How) Can We Estimate the Ideology of Citizens and Political Elites on the Same Scale? American Journal of Political Science. 2016. 16(4):1108-1124.
[Online Appendix]

"Don't Know" Responses, Personality and the Measurement of Political Knowledge. Political Science Research and Methods. 5(4):711-731.
[Replication Materials]

Ideological Proximity and Support for the Supreme Court.(with Neil Malhotra) Political Behavior. 2014, 36:817-846.

The Two Faces of Congressional Roll Call Voting. (with Sean Theriault) Party Politics. 2014, 20(6):837-848.

Public (Mis)Perceptions of Supreme Court Ideology: A Method for Directly Comparing Citizens and Justices. (with Neil Malhotra) Public Opinion Quarterly. 2013, 77(2): 619-634.

What Can We Learn About the Ideology of the Newest Supreme Court Justices? (with Alex Tahk) PS: Political Science and Politics. 2011, 44(3): 524-529.

Partisan Bias, Political Information and Spatial Voting in the 2008 Presidential Election The Journal of Politics. 2010, 72(2):327-340.
[Online Appendix]

Are Congressional Leaders Middlepersons or Extremists? Yes. (with Neil Malhotra) Legislative Studies Quarterly, 2010, XXXV(3): 361-392.
[Online Appendix]

Voter Ideology and Candidate Positioning in the 2008 Presidential Election American Politics Research. 2010, 38(2): 195-210.
[Online Appendix]

Spatial Voting in the 2004 Presidential Election. American Political Science Review. 2009, 103(1):59-81.


"Kavanaugh will Move the Court to the Right of Even Most Republicans" (Opinion) The New York Times. 2018.

Supreme Court Ideology Project (with Alex Tahk)