Since the war began, Lincoln has chosen to interpret his presidential powers broadly.

He’s called up military forces to defend the Union.He’s declared martial law. Today he suspended the writ of habeas corpus—our basic right to not be imprisoned without a court hearing—across the nation. He acts first, then seeks approval from Congress.

The President argues that he’s doing what’s necessary and staying within the limits of the Constitution. His critics say he’s crossed the line.