General elections are scheduled to be held in Brazil in October 2018 to elect the President and Vice President, the National Congress, state Governors and Vice Governors and state Legislative Assemblies.
The President of Brazil is elected using the two-round system. Citizens may field their candidacies for the presidency, and participate in the general elections, which are held on the first Sunday in October (in this instance, 7 October 2018). If the most-voted candidate takes more than 50% of the overall vote, he or she is declared elected. If the 50% threshold is not met by any candidate, a second round of voting is held on the last Sunday in October (in this instance, 28 October 2018). In the second round, only the two most-voted candidates from the first round may participate. The winner of the second round is elected President of Brazil.
Two-thirds of the 81 members of the Federal Senate will be elected, the other third having been elected in 2014. Two candidates will be elected from each of the states using majority block voting, with voters able to cast two votes each. All 513 members of the Chamber of Deputies will be elected, with candidates elected from 27 multi-member constituencies based on the states, varying in size from eight to 70 seats. The Chamber elections are held using open listproportional representation, with seats allocated using the simple quotient.Voting is mandatory and abstainers can be fined.
Sources and Further Reading:
Courts May Decide Brazil’s Election, Attorney General Warns
Lula would easily win Brazil’s October election: poll
Countdown to Brazil’s 2018 Elections, Part 3: Public Security and Military Intervention