But one thing that is clear about Newsom is his attitude. The two-term governor has modulated climate policy in some cases, but, in general, has refused to yield to threats from the business community about the costs of action. And, as his tack against Trump has shown, he isn’t afraid to be relentless as he takes on opposition.

California Governor Gavin Newsom got a hero’s welcome last week when he arrived in Brazil for COP30. Because President Donald Trump basically boycotted the United Nations Climate Summit, it was Newsom who ended up huddling with diplomats and executives,

California Gov. Gavin Newsom pulled no punches at the climate talks in Brazil, taking aim at President Donald Trump for abandoning efforts to tackle the climate crisis

The U.S. is maintaining a presence at COP30, despite the Trump administration declining to send an official delegation to this year's climate conference in Brazil.

California Gov. Gavin Newsom flew to Brazil this week for the 30th annual United Nations Climate Change Conference, commonly known as COP30.

California Gov. Gavin Newsom flew to Brazil to preach about clean energy while his state imports 50% of all Amazon oil production.

California Gov. Gavin Newsom is warning that eight senators' decision to break with Democrats and end the government shutdown shows they aren't alarmed enough about President Donald Trump's impact on political norms.

California Governor Gavin Newsom represents U.S. at Brazil climate conference while Trump administration criticizes state's average $4.67 per gallon gas prices.

Gov. Gavin Newsom will have to fight to extend his influence beyond California as he waits for the 2028 presidential race to heat up.