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The United Kingdom is a constitutional monarchy consisting of two legislative branches and is a common wealth realm government. The executive branch of government includes the chief of state, prime minister, and the cabinet. Queen Elizabeth II is the chief or head of state and has held that position since February 6,1952. Since May 11, 2010, the head of the government has been Prime Minister David Cameron, who is also the leader of the major political party in the House of Commons. In order to be a member of the cabinet, one must be a appointed by the prime minster. Most if not all political power lies in the hands of the prime minister and cabinet, and the monarch must act on these recommendations. The cabinet must plan and present important bills before Parliament. The cabinet secretariat implements the cabinet's decisions and prepares the agenda, accounts for its conclusions, and communicates them to the different governmental departments for execution. Monarchies are typically hereditary, so one does not have to be elected into a position. Instead, position is inherited through blood line. The UK does not have a codified Constitution. This means it is not fully written and can be flexible in interpreting laws. Under David Cameron, the United Kingdom is a conservative country.

The legislative, executive, and judicial branches are the three main components of the United Kingdom's government. Just as in other governmental systems, overlap can be seen in the powers of the branches. This is especially due to the fact that there exists no official separation of powers or process of checks and balances. At one time, the lord chancellor was a cabinet member, leader in the House of Lords, and head of the judicial branch, showing a presence in all three branches. In 2006, a constitutional reform revoked most legislative and judicial powers, appointing them to the lord speaker and the lord chief justice. This reform also created the Supreme Court, which took the place of the Appellate Committee of the House of Lords.

The parliament is sovereign in nature, and consists of the monarch and the elected House of Commons. In the House of Commons, the party with a majority supports the cabinet, so it exercises the power of Parliament. While the cabinet controls the vehicle for lawmaking, it is still subject to the Parliament. The sovereignty that is bestowed in Parliament can be seen in its legislative enactments, which apply to all citizens. In some situations, individuals also seek defense and protection from European law. Since 1999, the House of Lords has been appointed peers, whom are selected by the successive prime minister, and are to serve for life. Before this time, the House of Lords was largely comprised of aristocrats or nobles. The members of the House of Commons represent an individual district, and are appointed by winning the majority of votes in that respective constituency.

The United Kingdom has many different politcal parties and leaders:
Conservative Party - David Cameron
Democratic Unionist Party - Peter Robinson from Northern Ireland
Labor Party- Ed Miliband
Liberal Democrats - Nick Clegg
Party of Wales - Ieuan wyn Jones
Scootish National Party - Alex Salmond
Sinn Fein in Northland Ireland - Gerry Adams
Social Democratic and Labor Party of Norhern Ireland - Alasdair McDonnell
Ulster Unionist Party in Northern Ireland- Tom Elliott

As for the justice system in the UK, judges are appointed and very hard to remove from power. While the courts are solely responsible for declaration of the law, courts also accept acts of Parliament as law. Since the courts do not practice judicial review, no court can proclaim a law as invalid. Criminal verdicts are decided on a majority vote and capital punishment was outlawed in 1965. The majority of civil actions are dealt with in local county courts.