Legal experts disagree on whether Trump can declare 'emergency' to build his wall

Vice President Mike Pence said Monday that White House lawyers are still looking into the legality of President Donald Trump declaring a national emergency to construct a $5.7 billion wall along the U.S.-Mexico border.

Trump will give a national address from the Oval Office Tuesday at 9 p.m. Eastern Time, during which he’s expected to discuss the partial government shutdown continuing over a Congressional impasse on the wall. Trump also plans to visit the southern border Thursday, according to a tweet from White House press Secretary Sarah Sanders.

The announcements come on the heels of Trump’s statements to reporters Friday saying he could end the legislative stalemate on border wall construction by declaring a national state of emergency, an option he said he would consider using depending on the progression of negotiations with Democratic lawmakers.

In this Jan. 2, 2019, photo, a border patrol office inside his vehicle guards the border fence at the U.S. side of San Diego, Calif., as seen from Tijuana, Mexico. As the U.S. government remains shut down over President Donald Trump’s insistence on funding for his border wall, nearly half of Americans identify immigration as a top issue for the government to work on this year. (AP Photo/Daniel Ochoa de Olza)
In this Jan. 2, 2019, photo, a border patrol office inside his vehicle guards the border fence at the U.S. side of San Diego, Calif., as seen from Tijuana, Mexico. (AP Photo/Daniel Ochoa de Olza)

"I can do it if I want," the president told reporters. "We can call a national emergency because of the security of our country. We can do it. I haven't done it, I may do it."

Trump is right. He can declare a national emergency. Yet funding for wall construction, as a national emergency, presents thornier legal hurdles.

The National Emergencies Act of 1976 is the underlying law that allows presidents to carry out emergency actions. In order to use it, a president must couple it with a separate, existing law that authorizes funds for emergency use. The Act was created following the Nixon Watergate scandal to rein in executive power, ending decades of presidential overreach and terminating existing emergency authority.

President Donald Trump turns to depart after speaking on the South Lawn of the White House as he walks from Marine One, Sunday, Jan. 6, 2019, in Washington. Trump returned from a trip to Camp David. (AP Photo/Alex Brandon)
President Donald Trump turns to depart after speaking on the South Lawn of the White House as he walks from Marine One, Sunday, Jan. 6, 2019, in Washington. Trump returned from a trip to Camp David. (AP Photo/Alex Brandon)

“Once he [declares an emergency], he must make the decision public, and he must also specify which laws he's drawing on for his emergency powers,” Kim Lane Scheppele, professor of international affairs at Princeton University, told Yahoo Finance, outlining the steps the president must take to use the Act to fund a wall.

The framework, Scheppele said, gives rise to two questions with respect to Trump’s state-of-emergency scenario: 1) whether any emergency power can be found somewhere in an already-existing law that could be stretched to move funds appropriated for one purpose to use for another; and 2) whether any transferred funds would be permitted in a context involving either immigration or border protection.

Needle in a statutory haystack

“Unknown to most Americans, a parallel legal regime allows the president to sidestep many of the constraints that normally apply,” a report from The Atlantic states. “The moment the president declares a ‘national emergency’ — a decision that is entirely within his discretion — more than 100 special provisions become available to him.”