Overview

• All major blocs used the one-day extension until 2 p.m. on July 21 to submit their full slates after power outages and late-night haggling.
• La Libertad Avanza under Karina Milei and PRO formalized a joint list led by retired commissioner Maximiliano Bondarenko in the Third Section.
• The Peronist coalition reassembled as Fuerza Patria with Gabriel Katopodis atop the First Section Senate ticket and Verónica Magario leading the Third Section deputies list.
• The centrist Somos Buenos Aires alliance registered separate lists following defections by PRO mayors Pablo Petrecca, Javier Martínez and Santiago Passaglia.
• Voters will choose 46 deputies and 23 senators on September 7 in a desdobled election that will decide whether presidential vetoes can be overridden.