They have a certain degree of institutionalised influence which was expanded under the Treaty of Lisbon to include greater ability to scrutinise proposed European Union law .
The national parliaments of the European Union are those legislatures responsible for each member state of the European Union ( EU ) .
parliaments have a certain degree of institutionalised influence which was expanded under the Treaty of Lisbon to include greater ability to scrutinise proposed EU   law .
The national parliaments of the European Union are those legislatures responsible for each member state of the European Union ( EU ) .