Purcell v. Gonzalez (2006)
The Supreme Court ruled that a lower court's injunction against Arizona's voter ID law should be stayed because it came too close to an upcoming election. Justice Stevens wrote that federal courts should avoid altering election rules at the last minute to prevent voter confusion.
Arizona's voter ID law remained in effect for the 2006 primary.
Established the 'Purcell principle,' which courts now cite to justify leaving state election procedures unchanged near Election Day.
The Supreme Court's September 15 decision mirrors this logic, declining to impose sweeping new mail ballot rules with voting already underway.
