Presidents can also rely on a cornucopia of powers provided by Congress, which has
historically been the principal source of emergency authority for the executive
branch. Throughout the late 18th and 19th centuries, Congress passed laws to give
the president additional leeway during military, economic, and labor crises. A more
formalized approach evolved in the early 20th century, when Congress legislated
powers that would lie dormant until the president activated them by declaring a
national emergency. These statutory authorities began to pile up—and because
presidents had little incentive to terminate states of emergency once declared,
these piled up too. By the 1970s, hundreds of statutory emergency powers, and
four clearly obsolete states of emergency, were in effect. For instance, the national
emergency that Truman declared in 1950, during the Korean War, remained in
place and was being used to help prosecute the war in Vietnam.
Aiming to rein in this proliferation, Congress passed the National Emergencies Act
in 1976. Under this law, the president still has complete discretion to issue an
emergency declaration—but he must specify in the declaration which powers he
intends to use, issue public updates if he decides to invoke additional powers, and
report to Congress on the government’s emergency-related expenditures every six
months. The state of emergency expires after a year unless the president renews it,
and the Senate and the House must meet every six months while the emergency is
in effect “to consider a vote” on termination.
By any objective measure, the law has failed. Thirty states of emergency are in
effect today—several times more than when the act was passed. Most have been
renewed for years on end. And during the 40 years the law has been in place,
Congress has not met even once, let alone every six months, to vote on whether to
end them.
As a result, the president has access to emergency powers contained in 123
statutory provisions, as recently calculated by the Brennan Center for Justice at
NYU School of Law, where I work. These laws address a broad range of matters,
from military composition to agricultural exports to public contracts. For the most
part, the president is free to use any of them; the National Emergencies Act doesn’t