State officials vowed to sue the Trump administration, calling it an attack on the state’s decadeslong effort to fight pollution.

The U.S. Senate on Thursday voted to block California’s first-in-the-nation regulations that would ban the sale of new gasoline-powered passenger vehicles statewide in 2035, setting up a certain legal battle over the future of electric cars in the United States.

California is preparing to sue the federal government to recover its right to set vehicle emissions standards, Rob Bonta, the state’s attorney general, told TechCrunch in a statement.