Brazil's Supreme Court is facing what may be the worst crisis in its history. Justice André Mendonça unsealed the Banco Master investigation, exposing messages between the bank's former CEO and Justice Alexandre de Moraes. Now two factions of the court are openly at war, less than a month before the first round of the presidential election.

Gustavo Ribeiro and James Green break down how the scandal reached every corner of the political spectrum, why Brazilians are left choosing between impunity and disregard for due process, and whether this fight could tip a race that polls call a toss-up.