Form of governance. Republican Unitary system (unitary republic) and the government have a president as head of state. And many party Most power is still president.
The format of the document system state (unitary republic) and as the head of State is a President of the State and there are many political party. Most of the powers to the President.
The captain of the Republic of the State (unitary republic) and is the president of government, there is a chief of the State and the party of power is one of many in the majority of the President