Liza Goitein on PBS: With a ‘national emergency,’ could Trump use the military to build the wall?

January 7, 2019

President Trump has threatened to use executive power to declare a national emergency at the U.S.-Mexico border and obtain funds for a border wall without approval from Congress. But would such a dramatic move be legal? William Brangham asks Elizabeth Goitein of NYU’s Brennan Center for Justice how a national emergency is defined and what powers become available after one is declared.