It is, I suppose, possible to imagine a situation in which the president might take advantage of the most recent exception, enacted in 2011, which authorized the military detention of suspected terrorists associated with Al Qaeda or the Taliban. But despite President Trump’s unsupported claims about “terrorists” trying to cross the border, it is an unconscionable stretch to use this proviso to support using the military for operations against the desperate refugees from Central America seeking asylum in our country.

It is even less plausible for the president to suspend these restrictions under the National Emergencies Act of 1976. From the Great Depression through the Cold War, presidents systematically abused emergency powers granted them by Congress in some 470 statutes, culminating in the Watergate fiasco. In response, the first section of the 1976 act terminated all existing emergencies and created a framework of checks and balances on the president’s arbitrary will.

If President Trump declared an emergency, Section Five of the act gives the House of Representatives the right to repudiate it immediately, then pass their resolution to the Senate — which is explicitly required to conduct a floor vote within 15 days. Since President Trump’s “emergency” declaration would be a direct response to his failure to convince Congress that national security requires his wall, it is hard to believe that a majority of the Senate, if forced to vote, would accept his show of contempt for their authority.