Inside the 72 hours that cratered the US-Canada trade deal

U.S. Trade Representative Jamieson Greer entered a meeting with Canadian officials Friday afternoon with a frown.
For more than a week, Greer had been in wall-to-wall negotiations with Canada's top trade officials, and the two sides were tantalizingly close to striking a deal that would break through more than a year of icy diplomatic and economic relations. The two North American neighbors had agreed on the overarching framework. Industry groups and stakeholders had been briefed. A deal seemed imminent.