The president is right to leverage the debate by threatening to use power Congress has already delegated to at least begin constructing portions of the wall. Whether we agree with such delegation or not, there is no more appropriate situation in which it should be used than with our own border. Obviously, absent congressional authorization to expend funds, the president lacks any inherent authority to spend money. Article I, Section 9 unambiguously states, “No Money shall be drawn from the Treasury, but in Consequence of Appropriations made by Law.” However, in this case Congress has explicitly authorized fencing at the...