"California’s clean-air agency voted on Friday to push ahead with stricter emissions standards for cars and trucks, setting up a potential legal battle with the Trump administration over the state’s plan to reduce planet-warming gases.
The vote, by the California Air Resources Board, is the boldest indication yet of California’s plan to stand up to President Trump’s agenda. Leading politicians in the state, from the governor down to many mayors, have promised to lead the resistance to Mr. Trump’s policies.
Mr. Trump, backing industry over environmental concerns, said easing emissions rules would help stimulate auto manufacturing. He vowed last week to loosen the regulations. Automakers are aggressively pursuing those changes after years of supporting stricter standards."