In October, President Trump issued a proclamation denying entry into the U.S. for otherwise qualified visa applicants unless they are likely to receive “approved health insurance” within 30 days of entry...

A decision with limited immediate consequences could have more impact over the long run in elevating the role of the president’s lawyers in future conflicts with Congress.

The president’s use of his Article II power to pardon war crimes raises fundamental issues of the rule of law.

The rules under which Donald Trump will face trial in the Senate are a combination of theatrically detailed and maddeningly vague.