California has taken legal action against the Trump administration. A lawsuit has been filed regarding the reclassification of certain Clean Air Act preemption waivers. The state's Attorney General, Rob Bonta, made the announcement on Monday.

The lawsuit involves four waivers, including those related to greenhouse gas emission standards and clean cars. Further details about the lawsuit and the specific waivers involved are available from the California Attorney General's office and other sources, including NBC Bay Area.