The Globe and Mail reports in its Tuesday edition that Mark Wiseman, Canada's ambassador to the U.S., warns that President Donald Trump's trade war is negatively impacting the American auto industry by limiting access to its most profitable market -- Canada. The Globe's Adrian Morrow writes that Mr. Wiseman, speaking in Washington, highlighted the economic repercussions of Mr. Trump's protectionist policies on the U.S. economy. The President's Section 232 tariffs, which imposed 25-per-cent levies on autos and auto parts imported into the U.S. -- which triggered retaliatory tariffs from Ottawa -- are not only "costing jobs" and "creating hardship" in Canada, he said. "It is also closing off the most important foreign market for the sale of U.S. automobiles. ... It's important to remember what is the impact on the [U.S.] of these tariffs." The U.S. would be better off, he said, by co-operating with other countries. "One of the phrases I've started to use now is 'America First doesn't mean America alone,' and I think the auto sector is a great example of that." Official talks to end the trade war have been frozen since last October. Mr. Wiseman was mum on his discussions with U.S. officials since taking office.