U.S. Supreme Court strikes down Trump global tariffs, ruling president exceeded authority

The Supreme Court of the United States has struck down sweeping global tariffs imposed by President Donald Trump, ruling the measures were not authorized under the law used to enact them.

In a 6-3 decision released Friday, the court said the tariffs — applied broadly to goods from multiple countries — were improperly imposed under emergency economic powers that do not allow a president to unilaterally set tariffs.

The ruling marks a major development in a long-running legal battle over the use of emergency authority to reshape U.S. trade policy. Several states, businesses and trade groups had challenged the tariffs, arguing the White House overstepped powers traditionally reserved for Congress.

The decision effectively invalidates the tariffs covered by the case, including measures that affected Canadian exports in sectors such as manufacturing and natural resources.

However, the court’s decision does not eliminate the possibility of new tariffs. U.S. officials have indicated the government could pursue similar trade measures using other laws that explicitly authorize tariffs.