Art. 56. The Senate shall consist of two Senators from each State and two from the Federal District, chosen in direct election.
Each State Legislature shall certify to the election of the candidate who shall have obtained a majority of the total number of votes cast.
Art. 57. There shall be elected an alternate for each Senator.
Art. 58. Each Senator shall serve four years. The Senate shall be renewed by half every two years.
Art. 59. The qualifications necessary to be a Senator shall be the same as those necessary to be a Representative, excepting that of age, which shall be over thirty-five on the day of election.
Art. 60. Each House shall be the judge of the election of its members and shall decide all questions arising therefrom.
Its decisions shall be final.
Art. 61. Representatives and Senators are inviolable for opinions expressed by them in the discharge of their duties, and shall never be called to account for them.
Art. 62. Representatives and Senators shall be disqualified during the terms for which they have been elected from holding any Federal or State
