On July 1, Canada, Mexico, and the United States will hit the first real deadline in the review of their trilateral trade pact, known as the United States-Mexico-Canada Agreement (USMCA). By then, the three governments must either endorse renewal or signal an intention to exit, even as negotiations continue. That milestone matters not only for North American trade. It is the first major test of whether Ottawa has more leverage in its relationship with Washington than its own policy