Electoral system for the president

Constitution

Article 83 (b) Except for President and Vice President, all elections of public officers shall be determined by a simple majority of the valid votes cast in any election. Election of President and Vice President shall be by absolute majority of the valid votes cast. If no Presidential ticket obtains an absolute majority in the first ballot, a second ballot shall be conducted on the second Tuesday following expiry of the time provided in Article 83(c). The two presidential tickets that received the greatest number of valid votes on the first ballot shall be designated to participate in the run-off election and the ticket with a majority of the valid votes cast shall be the declared winner.