By Miles CooperMay 1, 2026 Politics John Seymour, Ex-Anaheim Mayor and U.S. Senator, Dies at 88 — A Stalwart of California Politics John Seymour, former Anaheim mayor and U.S. senator, has died at 88. Known for his local and national service, Seymour’s career spanned key political roles in California. His passing marks the end of a notable public legacy.