Alan S. Gerber is Divisional Director for the Social Sciences and Dilley Professor of Political Science at Yale University, Connecticut. Co-author of an award-winning textbook on experimental methods, his work has appeared in the leading journals in political science and has received various awards, including the Heinz Eulau Award for the best article in the American Political Science Review. He was elected to the American Academy of Arts and Sciences (2009) and the American Academy of Political and Social Sciences (2013). Eric Schickler is Jeffrey and Ashley McDermott Professor of Political Science at the University of California, Berkeley. He is the author of Disjointed Pluralism, which won the Richard F. Fenno, Jr Prize for the best book on legislative politics in 2002. He is the co-author of Partisan Hearts and Minds, which was published in 2002, and Filibuster, which was published in 2006 and won the Fenno Prize.

'Overall, Governing in a Polarized Age is focused on representation and the impact of a member's credit claiming, advertising, and position taking on Congress (specifically) and the executive branch (generally).' Jacob R. Straus, Congress and the Presidency

• 1. Introduction; Part I. Political Representation and Democratic Accountability: 2. The electoral connection, age 40 R. Douglas Arnold; 3. The electoral connection, then and now Gary Jacobson; 4. The congressional incumbency advantage over sixty years: measurement, trends, and implications Robert S. Erikson; 5. A baseline for incumbency effects Christopher Achen; Part II. Continuity and Change in Party Organizations: 6. Legislative parties in an era of alternating majorities Frances E. Lee; 7. Parties within parties: parties, factions, and coordinated politics, 1900–80 John Mark Hansen, Shigeo Hirano and James M. Snyder, Jr; 8. Where measures meet history: party polarization during the New Deal and Fair Deal Joshua D. Clinton, Ira Katznelson and John S. Lapinski; Part III. Partisanship and Governmental Performance: 9. Polarized we govern? Sarah Binder; 10. What has Congress done? Stephen Ansolabehere, Maxwell Palmer and Benjamin Schneer; 11. Can Congress do policy analysis? The politics of problem solving on Capitol Hill Eric M. Patashnik and Justin Peck; 12. Studying contingency systematically Katherine Levine Einstein and Jennifer Hochschild; 13. Majoritarianism, majoritarian tension, and the Reed revolution Keith Krehbiel; Part IV. Conclusions: 14. Intensified partisanship in congress: institutional effects David E. Price; 15. The origins of Congress: The Electoral Connection David R. Mayhew.

Alan S. Gerber is Divisional Director for the Social Sciences and Dilley Professor of Political Science at Yale University, Connecticut. Co-author of an award-winning textbook on experimental methods, his work has appeared in the leading journals in political science and has received various awards, including the Heinz Eulau Award for the best article in the American Political Science Review. He was elected to the American Academy of Arts and Sciences (2009) and the American Academy of Political and Social Sciences (2013). Eric Schickler is Jeffrey and Ashley McDermott Professor of Political Science at the University of California, Berkeley. He is the author of Disjointed Pluralism, which won the Richard F. Fenno, Jr Prize for the best book on legislative politics in 2002. He is the co-author of Partisan Hearts and Minds, which was published in 2002, and Filibuster, which was published in 2006 and won the Fenno Prize.

'Overall, Governing in a Polarized Age is focused on representation and the impact of a member's credit claiming, advertising, and position taking on Congress (specifically) and the executive branch (generally).' Jacob R. Straus, Congress and the Presidency

• 1. Introduction; Part I. Political Representation and Democratic Accountability: 2. The electoral connection, age 40 R. Douglas Arnold; 3. The electoral connection, then and now Gary Jacobson; 4. The congressional incumbency advantage over sixty years: measurement, trends, and implications Robert S. Erikson; 5. A baseline for incumbency effects Christopher Achen; Part II. Continuity and Change in Party Organizations: 6. Legislative parties in an era of alternating majorities Frances E. Lee; 7. Parties within parties: parties, factions, and coordinated politics, 1900–80 John Mark Hansen, Shigeo Hirano and James M. Snyder, Jr; 8. Where measures meet history: party polarization during the New Deal and Fair Deal Joshua D. Clinton, Ira Katznelson and John S. Lapinski; Part III. Partisanship and Governmental Performance: 9. Polarized we govern? Sarah Binder; 10. What has Congress done? Stephen Ansolabehere, Maxwell Palmer and Benjamin Schneer; 11. Can Congress do policy analysis? The politics of problem solving on Capitol Hill Eric M. Patashnik and Justin Peck; 12. Studying contingency systematically Katherine Levine Einstein and Jennifer Hochschild; 13. Majoritarianism, majoritarian tension, and the Reed revolution Keith Krehbiel; Part IV. Conclusions: 14. Intensified partisanship in congress: institutional effects David E. Price; 15. The origins of Congress: The Electoral Connection David R. Mayhew.

Alan S. Gerber is Divisional Director for the Social Sciences and Dilley Professor of Political Science at Yale University, Connecticut. Co-author of an award-winning textbook on experimental methods, his work has appeared in the leading journals in political science and has received various awards, including the Heinz Eulau Award for the best article in the American Political Science Review. He was elected to the American Academy of Arts and Sciences (2009) and the American Academy of Political and Social Sciences (2013). Eric Schickler is Jeffrey and Ashley McDermott Professor of Political Science at the University of California, Berkeley. He is the author of Disjointed Pluralism, which won the Richard F. Fenno, Jr Prize for the best book on legislative politics in 2002. He is the co-author of Partisan Hearts and Minds, which was published in 2002, and Filibuster, which was published in 2006 and won the Fenno Prize.

'Overall, Governing in a Polarized Age is focused on representation and the impact of a member's credit claiming, advertising, and position taking on Congress (specifically) and the executive branch (generally).' Jacob R. Straus, Congress and the Presidency

• 1. Introduction; Part I. Political Representation and Democratic Accountability: 2. The electoral connection, age 40 R. Douglas Arnold; 3. The electoral connection, then and now Gary Jacobson; 4. The congressional incumbency advantage over sixty years: measurement, trends, and implications Robert S. Erikson; 5. A baseline for incumbency effects Christopher Achen; Part II. Continuity and Change in Party Organizations: 6. Legislative parties in an era of alternating majorities Frances E. Lee; 7. Parties within parties: parties, factions, and coordinated politics, 1900–80 John Mark Hansen, Shigeo Hirano and James M. Snyder, Jr; 8. Where measures meet history: party polarization during the New Deal and Fair Deal Joshua D. Clinton, Ira Katznelson and John S. Lapinski; Part III. Partisanship and Governmental Performance: 9. Polarized we govern? Sarah Binder; 10. What has Congress done? Stephen Ansolabehere, Maxwell Palmer and Benjamin Schneer; 11. Can Congress do policy analysis? The politics of problem solving on Capitol Hill Eric M. Patashnik and Justin Peck; 12. Studying contingency systematically Katherine Levine Einstein and Jennifer Hochschild; 13. Majoritarianism, majoritarian tension, and the Reed revolution Keith Krehbiel; Part IV. Conclusions: 14. Intensified partisanship in congress: institutional effects David E. Price; 15. The origins of Congress: The Electoral Connection David R. Mayhew.