Politics of the United Kingdom
The UK Parliament is the supreme legislative body in the United Kingdom (i.e., there is parliamentary sovereignty), and Government is drawn from and answerable to it. Parliament is bicameral, consisting of the House of Commons and the House of Lords. There is also a devolved Scottish Parliament and devolved Assemblies in Wales and Northern Ireland, with varying degrees of legislative authority.
Constitution of the United Kingdom
The United Kingdom comprises four countries: England, Wales, Scotland and Northern Ireland. Nevertheless, it is a unitary state, not a federation (like Australia, Argentina, Brazil, Canada, Germany, India, Russia or the United States), nor a confederation (like pre-1847 Switzerland or the former Serbia and Montenegro). Parliament contains no chamber comparable to the United States Senate (which has equal representation from each state of the USA), the Brazilian Senate, which has three senators from each state, or the German Bundesrat (whose membership is selected by the governments of the States of Germany).