12. U.S. Department of Agriculture. Nebraska Agricultural Export Statistics, 2025 Data indicating approximately one-third of Nebraska agricultural production is exported.
13. Washington State Department of Agriculture. Apple Export Market Data, 2025 Statistics showing Canadian market dependence for Washington apple growers.
14. U.S. Constitution. Article I, Section 8 Constitutional provision granting Congress authority over foreign commerce and tariffs.
15. International Emergency Economic Powers Act, 50 U.S.C. §§ 1701–1708 Federal statute authorizing presidential action in response to declared national emergencies affecting foreign commerce.
16. Congressional Research Service. “Presidential Authority to Impose Tariffs Under IEEPA,” 2025 Nonpartisan legal analysis examining scope and limits of executive tariff power.
17. War Powers Resolution, 50 U.S.C. §§ 1541–1548 1973 statute illustrating congressional efforts to reclaim authority from executive emergency action.