WASHINGTON (AP) — President Donald Trump is expected to sign a measure Thursday that blocks California’s first-in-the-nation rule banning the sale of new gas-powered cars by 2035, a White House official told The Associated Press.

The resolution Trump plans to sign, which Congress approved last month , aims to quash the country’s most aggressive attempt to phase out gas-powered cars. He also plans to approve measures to overturn state policies curbing tailpipe emissions in certain vehicles and smog-forming nitrogen oxide pollution from trucks.

The timing of the signing was confirmed Wednesday by a White House official who spoke on condition of anonymity to share plans not yet public.

The development comes as the Republican president is mired in a clash with California's Democratic go

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