Key U.S. senators urged U.S. Department of Agriculture (USDA) Secretary Tom Vilsack to “reject proposals that would weaken U.S. sugar policy and jeopardize our nation’s food security,” in a letter sent Friday. The bipartisan letter was led by Sen. John Hoeven (R-N.D.) and signed by a total of 12 senators, including Sen. Debbie Stabenow (D-MI), Chairwoman of the Senate Agriculture Committee.