The head of the House of Saud is the King of Saudi Arabia who serves as Head of State and monarch of the Kingdom of Saudi Arabia. The King holds almost absolute political power. The King appoints ministers to his cabinet who supervise their respective ministries in his name. The key ministries of Defence, the Interior and Foreign Affairs are usually held by members of the Saud family, as are most of the thirteen regional governorships. Most portfolios, however, such as Finance, Labour, Information, Planning, Petroleum Affairs and Industry, have traditionally been given to commoners, often with junior Al Saud members serving as their deputies. House of Saud family members also hold many of the Kingdom's critical military and governmental departmental posts. Ultimate power in the Kingdom has always rested upon the Al Saud, though support from the Ulema, the merchant community, and the population at large has been key to the maintenance of the royal family's political "status quo".