He also said that markets are going to swing up and down over time, dismissing concerns that led to a sell-off. He said the tariffs were needed in order to get American jobs back

President Trump has escalated tensions with Canada by threating to impose significant tariffs on imports like dairy and lumber. In retaliation, Canada has announced its own tariffs on U.S. goods. The situation is now further complicated by political developments in Canada where they’ve elected a new prime minister.