Ten California mayors are opposing Governor Gavin Newsom's funding proposals for the state's high-speed rail project, citing concerns about the use of local taxpayer money.

The mayors are expressing resistance to funding mechanisms that they believe could impact local tax bases. Their opposition comes after 16 years of planning and development on the high-speed rail project, during which no track has been completed.

The California high-speed rail project, first approved by voters in 2008, was originally designed to connect Los Angeles and San Francisco with bullet train service. The project has faced numerous delays, cost overruns, and political challenges since its inception.

The mayors' concerns center on proposals that would draw from local revenue sources to help fund the continued development of the rail system. Specific details about the proposed funding mechanisms were not immediately available.

The project has been a subject of ongoing debate in California politics, with supporters arguing it will provide crucial transportation infrastructure and critics questioning its costs and feasibility. The current opposition from local officials adds another layer to the complex political dynamics surrounding the rail project's future funding and development.