CTV National News: Trump toys with letting CUSMA expire ahead of meeting with Carney, SheinbaumAPMA president on his message to the U.S. trade representative in his CUSMA testimonyThere would be ‘significant concerns’ if U.S. pulls out of CUSMA deal: former White House advisorPM Carney to meet with U.S. President Trump, Mexican President Sheinbaum in WashingtonPM Carney to visit Washington amid Trump’s potential plans to remove U.S. from CUSMATrump’s CUSMA comments a method to seek ‘maximum leverage’ in trade negotiations with Canada: HamReid: U.S. trade hearings ‘the beginning of a very treacherous journey’ for Canada-U.S.-Mexico tradeTrump on CUSMA: 'We'll maybe let it expire, or we'll maybe work out another deal'