California is preparing to ask a court to block Donald Trump’s “illegal” tariffs, accusing the president of overstepping his authority and causing “immediate and irreparable harm” to the world’s fifth-largest economy.
The lawsuit, to be filed in federal court on Wednesday by California’s governor, Gavin Newsom, and attorney general, Rob Bonta, is the most significant challenge yet to Trump’s flurry of on-again-off-again tariffs.