| Acknowledgements | 第1-4页 |
| Abstract | 第4-5页 |
| 摘要 | 第5-7页 |
| Introduction | 第7-9页 |
| Chapter 1 The Manifestations of Partisan Polarization | 第9-22页 |
| ·Defining Partisan Polarization | 第9-11页 |
| ·Party Votes and Party Unity in Congress | 第11-15页 |
| ·Party Votes | 第12页 |
| ·Party Unity and Homogeneity | 第12-14页 |
| ·Historical Trends | 第14-15页 |
| ·Party Sorting of the Mass Electorate | 第15-17页 |
| ·Geographic Divide: Red States versus Blue States | 第17-19页 |
| ·Partisan Religious Polarization | 第19-22页 |
| Chapter 2 The Causes of Partisan Polarization | 第22-38页 |
| ·The Realignment of the Parties along Racial, Class and Regional Lines | 第22-26页 |
| ·Historical Transformations | 第22-23页 |
| ·Changes in Party Bases | 第23-25页 |
| ·Changes in the Political Environment | 第25-26页 |
| ·The Influence of Redistricting and Party Primaries | 第26-30页 |
| ·Partisan Gerrymanders and Safe Seats | 第26-29页 |
| ·The Side Effects of Party Primaries | 第29-30页 |
| ·More Culturally and Morally Charged Politics | 第30-35页 |
| ·Wedge Issues | 第30-31页 |
| ·The Use of Wedge Issues as Mobilization Tactics | 第31-33页 |
| ·The Failure of the Liberal Procedural Republic | 第33-35页 |
| ·Economic Disparities and Political Polarization | 第35-38页 |
| Chapter 3 The Consequences of Partisan Polarization | 第38-49页 |
| ·The Worsening of the Lawmaking Process in Congress | 第38-41页 |
| ·The Scenario in the House of Representatives | 第38-39页 |
| ·The Scenario in the Senate | 第39-41页 |
| ·Policy Gridlock | 第41-43页 |
| ·Distorted Relations between the Branches of Government | 第43-46页 |
| ·A More Turbulent Foreign Policy | 第46-49页 |
| Conclusion | 第49-51页 |
| Bibliography | 第51-55页 |
| 附件 | 第55页 |
