section_path: Government and politics
section_name: Government and politics
paragraph_text: Government and politics
  
  The form of government is a democratic federative republic, with a presidential system. The president is both head of state and head of government of the Union and is elected for a four-year term, with the possibility of re-election for a second successive term. The current president is Luiz Inácio Lula da Silva. The president appoints the Ministers of State, who form the cabinet and assist in government.
  
  Legislative houses in each political entity are the main source of law in Brazil. The National Congress is the federation's bicameral legislature, consisting of the Chamber of Deputies and the Federal Senate. Judiciary authorities exercise jurisdictional duties almost exclusively. In 2021, the Economist Intelligence Unit 's Democracy Index categorized Brazil as a " flawed democracy ", ranking 46th in the report, and Freedom House classified it as a free country at Freedom in the World report.
  
  The political-administrative organization of the Federative Republic of Brazil comprises the Union, the states, the Federal District, and the municipalities. The Union, the states, the Federal District, and the municipalities, are the "spheres of government". The federation is set on five fundamental principles: sovereignty, citizenship, dignity of human beings, the social values of labor and freedom of enterprise, and political pluralism.
  
  The classic tripartite branches of government (executive, legislative and judicial under a checks and balances system) are formally established by the Constitution. The executive and legislative are organized independently in all three spheres of government, while the judiciary is organized only at the federal and state and Federal District spheres. All members of the executive and legislative branches are directly elected.
  
  For most of its democratic history, Brazil has had a multi-party system, with proportional representation. Voting is compulsory for the literate between 18 and 70 years old and optional for illiterates and those between 16 and 18 or beyond 70. The country has around 30 registered political parties. Twenty political parties are represented in Congress. It is common for politicians to switch parties, and thus the proportion of congressional seats held by particular parties changes regularly.