Overview

• Cámara Nacional Electoral released province-by-province Boleta Única de Papel models showing final party order and candidate lists ahead of the Oct. 26 vote.
• The new ballot displays parties in vertical columns and offices in horizontal rows, with color photos for Senate candidates and at least the first two photos and five names for Deputy lists.
• The 2025 renewal puts 24 Senate seats and 127 Chamber of Deputies seats on the ballot, with district-by-district counts detailed in the published materials.
• In Buenos Aires province, voters will choose 35 deputies from 15 political forces listed on the official ballot, which includes names such as José Luis Espert and Diego César Santilli among top candidates.
• Voters receive a signed single ballot and a pen, mark one box per category in the booth, fold along the dotted line to place it in the ballot box, then sign the registry and collect proof of vote.