The form of Massachusetts government is provided by the Constitution of the Commonwealth. The legislative power is exercised by the bicameral General Court, composed of the Senate and House of Representatives. The executive power generally is exercised by the Governor, along with other independently elected officers, the Attorney General, Secretary of the Commonwealth, and Auditor. The judicial power is reposed in the Supreme Judicial Court, which superintends the entire system of courts.  Cities and towns also act through local governmental bodies that possess only the authority granted to them by the Commonwealth over local issues, including limited home rule authority. Most county governments were abolished in the 1990s and 2000s, although a handful remain.