A coalition of Democratic-led states sued President Donald Trump on Thursday in the U.S. Court of International Trade, arguing that his newly imposed across-the-board tariffs are illegal. The suit is led by the Democratic attorneys general from Oregon, New York, California and Arizona along with attorneys general from 18 other states. They accused Trump of trying to “sidestep” a February Supreme Court ruling that overturned many of his tariffs by using a different statute, Section 122 of the Trade Act of 1974, as justification for new tariffs. “The President is attempting to use an obscure law as a tool for...