Five Unanswered Questions from Trump v. Hawaii

This article addresses five topics left unanswered by the majority opinion in Trump v. Hawaii, which upheld President Trump's travel ban in its entirety. What will happen on remand with respect to discovery? How should lower courts treat "this President, " as opposed to "the President "? How does the Constitution apply to aliens who are not seeking entry into the United States but have already crossed the border?

What is the scope of the president's Article II power to exclude aliens? And, what is the permissible scope of a nationwide injunction?