California voters have rejected Proposition 39, the constitutional amendment that would have required government-issued identification to vote in person and the last four digits of an identification number on every mail-ballot envelope. The Associated Press has called the measure defeated — No is the winning side in the AP count — making California's voters the ones who turned back the most far-reaching voter-ID proposal on any state ballot this year.
Source: Associated Press — California Proposition 39 results
The AP count put No ahead by 1,265,187 votes — about 59.4 percent to 40.6 percent — with just over half of California's 23,860 precincts reporting. A later Secretary of State tally reported by MyNewsLA, with 15,379 precincts partially reporting, showed the same picture: Proposition 39 trailing 59.7 percent to 40.3 percent. Pepperdine University's student newspaper, the Graphic, likewise reported the measure projected to fail at about 60 percent No to 40 percent Yes with half the vote counted. The result is unofficial until counties finish counting and the state certifies the election, but the margin is far beyond the remaining ballots.
Source: MyNewsLA — Voter ID, billionaire tax measures trailing in California
What Proposition 39 Would Have Changed
California generally does not require voters to present identification at the polls, and officials verify mail ballots by comparing the signature on the envelope with the signature in the voter's registration record. Proposition 39 would have replaced that system with a numbers-based one. Voting in person would have been prohibited without presenting government-issued identification. Voting by mail would have required the voter to designate a government-issued identification number in their registration and write the last four digits of that same number on the ballot envelope; election officials would check the digits against the registration record before counting the ballot, and a ballot whose digits did not match would not count — the Pepperdine Graphic's explainer gives the example of a voter who designated a Social Security number at registration but wrote a driver's licence number on the envelope.
Source: Pepperdine Graphic — California propositions guide
The measure went further than the polling place. It would have required state and county election officials to use government data to make their best efforts to verify the citizenship of registered voters, and to report each year what percentage of each county's voters had their citizenship verified. The state would have provided free voter identification cards on request, the State Auditor would have reviewed compliance every two years, and — a point both sides noted — additional legislation would still have been needed to implement the amendment, including deciding which forms of identification would qualify. United States citizenship is already required to register to vote in California's state and federal elections.
Source: MyNewsLA — Voter ID, billionaire tax measures trailing in California
The Arguments Voters Weighed
The Yes campaign, led by Reform California, argued the requirements would preserve mail voting while reducing the problems caused by mismatched signatures — the current system's most common reason for a mail ballot to be challenged. The California Republican Party supported the measure; the California Democratic Party opposed it, according to the Secretary of State's voter guide positions compiled by California Today. Supporters framed the digits check as a modern, signature-free way to prove a mail ballot came from the registered voter.
Source: California Today — 2026 California ballot cheat sheet
Opponents argued that eligible voters could lose their ballots because they lack identification, because their registration records are outdated, or because of a simple error entering an identification number — and that writing part of an ID number on a mailed envelope increases identity-theft risk. The campaign against the measure, Californians for Voting Rights, made the same points in its fact sheet: a blank field, wrong digits, or confusion about which ID was designated could get a valid ballot rejected, and the measure did not clearly say which kinds of ID would be accepted.
Source: MyNewsLA — Voter ID, billionaire tax measures trailing in California
California was not voting in isolation. The Associated Press's national ballot-measures reporting counted five state measures this year seeking voter ID mandates, part of a wider national fight over how voters prove who they are — a fight that also reached California's courts this autumn in the separate dispute over some 20,000 flagged ballots. Proposition 39 was one of 14 propositions on California's November 3 ballot; on the same ballot voters approved Proposition 37's $25 billion home-loan program, while the Proposition 40 billionaire wealth tax was also trailing in the same returns.
Source: Associated Press — California Proposition 39 results
California's Punjabi communities — in Fresno, Bakersfield, Stockton, Yuba City, Sacramento and the Bay Area — vote heavily by mail, and many households include older voters and naturalised citizens whose registration records were created years ago. A last-four-digits rule is exactly the kind of paperwork trap opponents warned about: one transposed digit on an envelope could have voided a valid vote. Tuesday's No vote means nothing changes for those families — mail ballots will still be checked by signature, no ID is needed at the polls, and no new citizenship-verification reporting applies to their registrations.
The count continues: mail ballots postmarked by Election Day can arrive at counties until November 10, and the state will certify the election after counties finish. Because Proposition 39 was a constitutional amendment, its defeat leaves the existing signature-based system in place with no implementation legislation to write. Nothing in Tuesday's vote stops a future campaign or legislature from proposing voter ID again — but for the 2028 cycle and beyond, California votes the way it voted this week.