The dramatic expansion of the unchecked power of the executive branch is one of the major legacies of the Obama administration. Unfortunately, a new rule from the Department of Commerce threatens to continue this consolidation of power in the executive branch and would undermine the economic strength that America has enjoyed during President Trump’s tenure. By giving the Department nearly unbounded authority to stamp out trade with “foreign adversaries,” this vague new rule risks imposing serious economic harm. Under this rule, transactions between American companies and “foreign adversaries” that involve information technology or services that are deemed to be vital...