Trump signed three measures revoking California's waivers for rules that clean up cars and trucks. California and 9 other ...

Trump signed measures Thursday revoking waivers for the state’s mandates that clean up car and truck exhaust and ramp up sales of electric vehicles.

California is taking the Trump administration to court again, this time over the administration's blocking of the state's ...

California sued Donald Trump's administration Thursday over his move to scrap the state's tailpipe emission rules and its ...

The move by Trump and Congress deals a substantial ... Ten other states that are enforcing California’s emissions rules joined the lawsuit — Colorado, Delaware, Massachusetts, New Jersey ...

The state’s latest lawsuit charges the administration with illegally targeting its authority to set tougher vehicle-emission ...

President Donald Trump has signed resolutions blocking California's electric vehicle and diesel engine rules, prompting an ...

The state’s attorney general argued that local law enforcement had been capable of handling the situation and could have ...

Attorney General Rob Bonta argued the president's move to federalize the National Guard "infringes" on state sovereignty.

California formally sued the Trump administration Monday in a bid to void President Trump’s weekend move to federalize the ...

California sued to protect itself from the Trump administration’s threats to pull federal funding over a state law that ...

California has sued President Trump over his decision to deploy National Guard troops to Los Angeles without the governor’s ...