The U.S. Supreme Court has dealt with a series of cases involving challenges to the actions of President Donald Trump and his administration since he returned to office in January. These cases have involved the U.

On Wednesday the Supreme Court heard oral arguments about the legality of President Trump’s tariffs.

Tariffs have become a cornerstone of Trump’s foreign policy in his second term, with double-digit “reciprocal’’ tariffs imposed on most countries, which he has justified by declaring America’s longst...