The Inevitable Party: Why Attempts to Kill the Party System Fail and How they Weaken Democracy, Oxford University Press, 2016 (publisher’s page)(Facebook page).

No Middle Ground: How Informal Party Organizations Control Nominations and Polarize Legislatures, The University of Michigan Press, 2009 (publisher's page).

“Kingmakers or Cheerleaders? Party Power and the Causal Effects of Endorsements,” Political Research Quarterly, 2015 (with Thad Kousser, Scott Lucas, and Eric McGhee, forthcoming)

“The Ground Game in the 2012 Election,” Political Communication, 2015 (with John Sides and Lynn Vavreck , forthcoming).

“Polarization without Parties: Term Limits and Legislative Partisanship in Nebraska’s Unicameral Legislature,” State Politics and Policy Quarterly, 2015, vol. 15, iss. 1, 67-90 (with Boris Shor).

“Does Public Election Funding Create More Extreme Legislators? Evidence from Arizona and Maine,” State Politics and Policy Quarterly, 2015, vol. 15, iss. 1, 24-40 (with Michael Miller).

“Mobilizing Marginalized Groups among Party Elites,” The Forum, 2014 vol. 12, iss. 2, 257-80 (with Michael Heaney and Dara Strolovitch).

“A Primary Cause of Partisanship? Nomination Systems and Legislator Ideology,” (with Eric McGhee, Nolan McCarty, Steve Rogers, and Boris Shor). The American Journal of Political Science, 2014, 58 (2): 337-51.

“527 Committees, Formal Parties, and Party Adaptation,” The Forum, 2013 vol. 11, iss. 2, 137-56 (with Richard Skinner and David Dulio).

“Polarized Networks: The Organizational Affiliations of National Party Convention Delegates,” American Behavioral Scientist, 2012 (with Michael Heaney, Joanne Miller, and Dara Strolovitch).

“A Theory of Political Parties: Groups, Policy Demands, and Nominations in American Politics,” Perspectives on Politics, 2012, vol. 10, iss. 3 (with Kathleen Bawn, Marty Cohen, David Karol, Hans Noel, and John Zaller).

“One Vote out of Step? The Effects of Salient Roll Call Votes in the 2010 Election,” American Politics Research, 2012 (with Brendan Nyhan, Eric McGhee, John Sides, and Steven Greene).

“The Gerrymanderers are Coming! Legislative Redistricting Won’t Affect Competition or Polarization Much, No Matter Who Does It,” PS: Political Science & Politics, 2012, Vol. 45, Iss. 1, 39-43 (with Jonathan Winburn and Gerald C. Wright).

“527 Committees and the Political Party Network,” American Politics Research, 2012, Vol. 40, Iss. 1, 60-84 (with Richard Skinner and David Dulio).

"Serving Two Masters: Using Referenda to Assess Partisan versus Dyadic Legislative Representation," Political Research Quarterly, 2011 (with Hans Noel).

“Colorado’s Central Role in the 2008 Presidential Cycle,” in Duffy, C. and Straayer, J., eds., State of Change: Colorado Politics in the Twenty-first Century, University Press of Chicago, 2011.

"The Perils of Holding a Tea Party at High Altitude: Colorado's Senate and Gubernatorial Races in 2010," in Sabato, Larry J., ed., Pendulum Swing, Longman, 2011.

"Academics Outside the Academy," The Forum, 2010, Vol. 8: Iss. 3, Article 7.

"Painting the High Plains Blue: Musgrave vs. Markey in Colorado's Fourth Congressional District," in Adkins and Dulio, eds., Cases in Congressional Campaigns: Incumbents Playing Defense, Routledge Press, 2009.

"The Circus That Wasn't: The Republican Party's Quest for Order in the 2003 California Gubernatorial Recall," State Politics and Policy Quarterly, 2011, Vol. 11, Iss. 2, 123-47.

"Did Obama's Ground Game Matter? The Influence of Local Field Offices During the 2008 Presidential Election," Public Opinion Quarterly 2009, 73: 1023-1039.

"Cooperative Party Factions in American Politics," American Politics Research, 2010 (with Gregory Koger and Hans Noel).

"Partisan Webs: Information Exchange and Party Networks," British Journal of Political Science, 2009 (with Gregory Koger and Hans Noel).

"Where You Sit is Where You Stand: The Impact of Seating Proximity on Legislative Cue-Taking," Quarterly Journal of Political Science, 2008, 3: 301-311.

"It Takes an Outsider: Extra-legislative Organization And Partisanship In The California Assembly, 1849-2006," The American Journal of Political Science 51: 482-497.

"Ideological Adaptation? The Survival Instinct of Threatened Legislators," The Journal of Politics, 2007, 69: 828-843 (with Thad Kousser and Jeffrey B. Lewis).

"A Return to Normalcy? Revisiting the Effects of Term Limits on Competitiveness and Spending in California Assembly Elections," State Politics and Policy Quarterly, 2007, 7: 20-38 (with Jeffrey B. Lewis).

"Data Entry: Going Pro," The Political Methodologist, 2005, 13: 19-20.

"The Stealth Campaign: Experimental Studies of Slate Mail in California," Journal of Law & Politics, 2001, 17 (with Shanto Iyengar and Daniel Lowenstein).