<h1>President orders unilateral 10% tariffs on Canadian imports, raising statutory, trade agreement, and dispute risks</h1> The U.S. president announced a unilateral 10% increase in tariffs on imports from Canada, citing a television advertisement run by a Canadian province and stating intent to halt trade talks and avoid a summit meeting with the Canadian prime minister. The measure raises immediate legal issues: whether the executive has statutory authority to impose such targeted tariffs, potential breach of U.S. obligations under bilateral and multilateral trade agreements, and vulnerability to dispute settlement or retaliatory measures by Canada. Affected parties could seek administrative review, judicial relief, or challenge the action at the WTO.