The most likely person you mean is Sheng Thao , the Oakland mayor who was voted out in 2024. Voters in Oakland ousted her after one term, and coverage at the time described it as a major local upset.

If you meant a different city, a few other recent “liberal mayor” stories were also in the news, including Chicago’s Lori Lightfoot being defeated in 2023 and Calgary’s Jyoti Gondek losing reelection in 2025.