The Supreme Court's reapportionment decisions sparked a wave of extraordinary redistricting in the mid-1960s.

Part I. Introduction: 1. Introduction; 2. The reapportionment revolution; Part II. Democrats and Republicans: 3. A model of Congressional redistricting in the US; 4. The case of the disappearing bias; 5. The role of the courts in the 1960s redistricting process; 6. Bias, responsiveness and the courts; 7. Redistricting's differing impact on Democratic and Republican incumbents; Part III. Incumbents and Challengers: 8. The growth of the incumbency advantage; 9. Redistricting and electoral coordination; 10. Redistricting, the probability of securing a majority and entry; 11. Reassessing the incumbency advantage; Part IV. Conclusion: 12. Conclusion.