In November, 2014, President Barack Obama announced the creation of DAPA, a program which instructed executive branch officials to exercise their administrative discretion to defer the deportation of eligible applicants. The President’s announcement was met with a firestorm of controversy. Critics charged that, by altering the legal regime from one in which undocumented immigrants were to be deported to one of “executive amnesty,” the President had exceeded his authority, turning him into an “emperor” or a “king.” The President’s supporters saw no such regime change, insisting that the President was acting fully within his executive authority. Understanding this debate requires one both to delve into the complicated legal context, and to lo...