Executive power is exercised by the President, while the legislative power is vested in the unicameral parliament, called the Grand National Assembly of Turkey. The judiciary is nominally independent from the executive and the legislature, but the constitutional changes that came into effect with the referendums in 2007, 2010 and 2017 gave larger powers to the President and the ruling party for appointing or dismissing judges and prosecutors. The Constitutional Court is charged with ruling on the conformity of laws and decrees with the constitution. The Council of State is the tribunal of last resort for administrative cases, and the High Court of Appeals for all others.