WASHINGTON — A federal trade court on Wednesday blocked President Donald Trump from imposing sweeping tariffs on imports under an emergency-powers law.

The ruling from a three-judge panel at the New York-based Court of International Trade came after several lawsuits arguing Trump has exceeded his authority, left U.S. trade policy dependent on his whims and unleashed economic chaos.

“The Worldwide and Retaliatory Tariff Orders exceed any authority granted to the President by IEEPA to regulate importation by means of tariffs,” the court wrote, referring to the 1977 International Emergency Economic Powers Act.

The White House did not immediately respond to a message seeking comment. The Trump administration is expected to appeal.

Multiple Lawsuits Challenge Tariffs

At least seven lawsuits are challenging the levies, the centerpiece of Trump’s trade policy.

Tariffs must typically be approved by Congress, but Trump says he has the power to act because the country’s trade deficits amount to a national emergency. He imposed tariffs on most of the countries in the world at one point, sending markets reeling.

The plaintiffs argued that the emergency powers law does not authorize the use of tariffs, and even if it did, the trade deficit does not meet the law’s requirement that an emergency be triggered only by an “unusual and extraordinary threat.” The U.S. has run a trade deficit with the rest of the world for 49 consecutive years.

Trump’s Tariff Strategy and Legal Arguments

Trump imposed tariffs on most of the countries in the world in an effort to reverse America’s massive and longstanding trade deficits. He earlier plastered levies on imports from Canada, China and Mexico to combat the illegal flow of immigrants and the synthetic opioids across the U.S. border.

His administration argues that courts approved then-President Richard Nixon’s emergency use of tariffs in 1971, and that only Congress, and not the courts, can determine the “political” question of whether the president’s rationale for declaring an emergency complies with the law.

Trump’s Liberation Day tariffs shook global financial markets and led many economists to downgrade the outlook for U.S. economic growth. So far, though, the tariffs appear to have had little impact on the world’s largest economy.

Impact on Businesses and States’ Response

The lawsuit was filed by a group of small businesses, including a wine importer, V.O.S. Selections, whose owner has said the tariffs are having a major impact and his company may not survive.

A dozen states also filed suit, led by Oregon. “This ruling reaffirms that our laws matter, and that trade decisions can’t be made on the president’s whim,” Attorney General Dan Rayfield said.

Associated Press writers Zeke Miller and Paul Wiseman contributed to this story.