Prime Minister Mark Carney arrives on Parliament Hill in Ottawa on Thursday.

Prime Minister Mark Carney dismissed the idea that U.S. President Donald Trump is planning to withdraw from the trilateral USMCA free-trade pact and strike separate deals with Canada and Mexico.

He was responding to recent statements by Mr. Trump’s point man on trade .

Jamieson Greer, the United States Trade Representative, earlier this week repeated statements both he and Mr. Trump have made in the past including ambivalence about whether Washington would stick with the United States-Mexico-Canada Agreement (USMCA) or tear up the deal and negotiate separate deals with the two other countries.

The USMCA has been a vital shield for Canada during the trade war with the United States. Mr. Trump has impose

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