California is filing a lawsuit in federal court challenging President Donald Trump’s use of emergency powers to enact broad-sweeping tariffs, the governor’s office announced Wednesday, arguing the levies on imports hurt states, consumers, and businesses.

The lawsuit argues that President Trump lacks the authority to unilaterally impose tariffs through the International Economic Emergency Powers Act, creating immediate and irreparable harm to California, the largest economy, manufacturing, and agriculture state in the nation, the governor’s office said.

“President Trump’s unlawful tariffs are wreaking chaos on California families, businesses, and our economy — driving up prices and threatening jobs,” Newsom said in a statement Wednesday. “We’re standing up for American families who can’t afford to let the chaos continue.”

The governor’s office said that the lawsuit will be filed in the United States District Court for the Northern District of California, and requests the court “to immediately enjoin the tariffs imposed by President Trump.”

Newsom had earlier announced he would seek deals with other countries with which California trades to avoid impacts from the federal tariffs, though experts questioned the extent to which such an effort can succeed.

Check back for developments on this breaking news story.