Court: UK Supreme Court

Year: 2017

Principle(s): Rule of Law: Ministers are only allowed to give notice of withdrawal to the EU upon statutory authorization; Separation of powers: Legislative authorization is needed prior to ministers giving a formal notice of withdrawal from EU to the Council of the European Union

Court: Court of Appeals for the District of Columbia

Year: 1952

Principle(s): The President has no power to issue an order for the seizure of property, but congress has the power; separation of powers