Stephen Breyer's brother Charles Breyer will preside over the lawsuit Newsom brought against the Trump administration in California.

Washington State Attorney General Nick Brown has filed an amicus brief in support of California Gov. Gavin Newsom’s legal effort to prevent President Donald Trump from deploying the state’s National Guard to protect federal property and personnel.

California officials are filing a lawsuit Monday against President Donald Trump in response to the administration’s extraordinary deployment of the National Guard to confront immigration protesters in the streets in Los Angeles.

The difficulty facing California’s lawsuit is that federal ... question is whether the Trump administration had the power to federalize the National Guard against the wishes of the state ...

US President Donald Trump has signed several resolutions passed by Congress into law – including a measure to block California’s plans to ban the sale of new

California officials planned to file a lawsuit Monday against President Donald Trump in response to the administration’s extraordinary deployment of the National Guard to confront immigration protesters who took to the streets in Los Angeles.

As President Donald Trump signed a suite of congressional bills to block California’s electric vehicle mandate on Thursday, state leaders prepared to fight back in court. The state’s signature climate policy aimed to phase out gas-powered cars and have all new cars sold be electric by 2035.