Article snippet: he scrapped a planned trip to Washington to finalize a new deal on NAFTA after Vice President Pence demanded that any agreement expire after five years. Trudeau said that he made clear to Pence in a phone call on Tuesday that he would never sign a pact with a sunset clause. A White House official told The Hill that the sunset clause was one of several issues that the Trump administration wanted "clarity" on, and that it would continue to pursue NAFTA negotiations with Canada and Mexico. Trump has repeatedly threatened to withdraw from NAFTA unless it is renegotiated to fix what he has described as unfair terms for the U.S. Negotiators have sought for months to hammer out a reworked pact amid broader backlash over Trump's move to impose tariffs on several nations. The latest sharp words between the leaders of the two countries came as Trump on Thursday moved ahead with his decision to impose steep tariffs on steel and aluminum from Canada, Mexico and the European Union, prompting global leaders to warn of various retaliatory measures. The Hill 1625 K Street, NW Suite 900 Washington DC 20006 | 202-628-8500 tel | 202-628-8503 fax The contents of this site are ©2018 Capitol Hill Publishing Corp., a subsidiary of News Communications, Inc. Link to the full article to read more