Last week, President Trump declared a national emergency to get funding for the wall. The move gave him elevated power to move money around, but it was immediately met with lawsuits from 16 states. What exactly is a national emergency? Why is this one different? And just how far do a president’s emergency powers really go?Alex Wagner speaks with Liza Goitein, Co-Director of the Liberty and National Security Program at the Brennan Center. Months before the president’s announcement, Goitein looked into what powers presidents have in a national emergency.She wrote about her research in The Atlantic magazine, describing over 100 emergency powers she said were “ripe for abuse” and that “this edifice of extraordinary powers has historically rested on the assumption that the president will act in the country’s best interest when using them.”  What could happen in the hands of a president less concerned with norms?Learn more about your ad choices. Visit megaphone.fm/adchoices