The ruling, handed down late on Monday by U.S. District Judge Jacqueline Corley in San Francisco, did not delve into the merits of California's lawsuit. Now, three separate U.S. a

But the court left open a path for state officials to appeal to the liberal-leaning U.S. 9th Circuit Court of Appeals.

U.S. tariffs are in the spotlight once again in Europe as President Donald Trump's 50% levy on steel and aluminum imports came into effect Wednesday.

President Trump signed an order Tuesday doubling tariffs to 50% on steel and aluminum imports — drawing swift criticism from officials in neighboring Canada and Mexico. Why it matters: Trump's order said the increased tariffs that took effect early Wednesday "will more effectively counter" countries that "offload low-priced,

The executive order raises import taxes for US firms buying from other countries - but the levy remains at 25% for the UK.