Hydrogen is a funny fuel when it comes to cars. It was supposed to be the clean and convenient alternative to gasoline, but ...

Reporting from In Sacramento — One of California’s oldest gripes is that Washington shortchanges the state on taxes. But it’s a questionable claim. The beef is that California sends more ...

A new survey finds 80 percent of Californians want the state to control borders with other states "like a country." ...

As California and other states move to regulate AI, companies like OpenAI, Meta, Google and IBM are all urging Washington to pass national AI rules that would rein in state laws they don’t like ...

The move sets up another battle with Gov. Gavin Newsom, who has sparred with Trump in recent days over the president’s intervention in L.A. protests.

Numerous states adjust the excise tax they charge at the pump annually on July 1. Washington will have the biggest jump at 6 ...

WASHINGTON — California’s national reputation as a place of dreams and prosperity is in jeopardy, battered by Republicans who dislike almost all aspects of the state and many Democrats who see ...

Washington set in law a goal for all new car sales to be zero emissions by 2030 and we're ready to adopt California's regs by end of this year," Inslee said Wednesday on Twitter.

For the past three days, firefighters in Riverside County, California, and elsewhere have been working nonstop to tame the wildfires.

“We have the benefit of 10 years of California learning,” said former Washington state Democratic Sen. Reuven Carlyle, who authored the state’s 2021 law.

Does California send more money to Washington D.C. than it gets back in return? That question has been asked repeatedly as tensions have mounted between California Democrats and President Donald ...