In order to guarantee a further successful functioning of the enlarged European Union a Federal European Constitution … is proposed. Six basic elements of a future European federal constitution are developed: the European commission should … responsibility over all federal items. Three further key elements are the subsidiarity principle, federalism and the secession right …

units' constitutional arrangements as an alternative to the reforms of the federal constitution. Looking at the case of … Spanish model of federalism and others. This is done through the study of the initiation of the Catalan reform process, its …

formalist reading of the Constitution, whose Vesting Clauses permit only Congress to make law and the President only to execute …