All former U.S. secretaries of agriculture since President Reagan’s administration announced support for the United States-Mexico-Canada Agreement (USMCA). In a letter to Congressional leaders, former Secretaries John Block (Reagan), Mike Espy (Clinton), Dan Glickman (Clinton), Ann Veneman (W. Bush), Mike Johanns (W. Bush), Ed Shafer (W. Bush), and Tom Vilsack (Obama) underscored the importance of passing USMCA saying, “We need …