Amid talk in the U.S. of resetting trade relationships, President Donald Trump and Canadian Prime Minister Justin Trudeau said both countries are committed to maintaining trade ties and economic integration that support millions of jobs on both sides of the border. Trump emphasized that his pursuit of changes to the North American Free Trade Agreement are aimed more at commerce between the U.S. and Mexico than at Canada. The trade imbalances with Canada are “much less severe” than with Mexico and the U.S. will be looking at “tweaking” rules on trade with Canada when it renegotiates the accord, he said. At a joint news conference with Trump Monday at the White House, Trudeau said keeping a healthy trading relationship with the U.S. is a real concern for Canadians. “We know our economy is very dependent on our bonds, our relationship with the United States,” Trudeau said. “We continue to understand that we have to allow this free flow of goods and services.” Trade was at the top of the agenda for the first meeting between Trudeau and Trump as leaders of their respective countries. There’s a great deal at stake for the U.S. and its northern neighbor. Three quarters of Canadian exports head south across the border and 18 percent of American exports cross in the other direction. Trump has repeatedly said he wants significant changes to Nafta, which he has called a “disaster.” Trudeau’s cabinet believes that Canada isn’t his target, but they are concerned about suffering collateral damage from changes to the pact. Trudeau has expressed some willingness to discuss and possibly rework the deal, which has led to an expansion of trade between the three nations since it went into effect in 1994.