For months President Donald Trump has been slapping higher tariffs on practically every country’s exports to the United States, citing emergency economic powers.

U.S. appeals court judges sharply questioned on Thursday whether President Donald Trump's tariffs were justified by the president's emergency powers, as lawyers for states and businesses challenging the measures argued he exceeded his authority.

Ahead of President Trump's Aug. 1 deadline for the resumption of reciprocal tariffs, a court is hearing arguments over whether Trump's sweeping tariffs are lawful.