Article 19.
Should a constitutional dispute arise within a Land, for deciding which there is no competent court, or should a dispute of a public nature arise between Lands or between the Realm and a Land, either of the disputing parties may appeal, unless another court of the Realm is competent, to the Supreme National Court of Judicature, which shall decide. Execution of the decision of the Supreme Court of Judicature shall lie with the President of the Realm.
SECTION II
The Reichstag
Article 20.[19]
The Reichstag is composed of the deputies of the German people.
Article 21.
The deputies are representatives of the whole people. They are subject to their conscience only and are not bound by instructions.
Article 22.
The deputies shall be elected by universal, equal, direct, and secret suffrage by those of either sex over twenty years of age, on the principles of proportional representation. The day of the election must be a Sunday or public holiday. An electoral law of the Realm shall lay down further detailed regulations.