The Role of Constitutional Features in Judicial Review

American state constitutions vary tremendously in their length, amendment rate, and age. These three variables-especially the first two-strongly influence the rate at which state supreme courts strike down state actions for violating the state constitution. Longer, more detailed constitutions reduce policy flexibility, increasing judicial invalidations; rarely updated constitutions may fail to address modern concerns, increasing invalidations; and recently adopted constitutions may contain fragile logrolls and similar shortcomings, also increasing invalidations. These findings add new considerations to a rich literature on judicial review in state supreme courts.