Oregon Measure 60 (1998)
Oregon voters approved a ballot measure making theirs the first fully vote-by-mail state. Republican Secretary of State Phil Keisling championed it as a way to boost turnout.
Oregon's turnout jumped, and other western states followed.
Washington, Colorado, Utah, California, and Hawaii adopted mail-based systems over the next two decades.
Utah's automatic mail ballots belong to this wave; the 2029 phase-out would reverse a 25-year expansion.
