What happens in Brazil won't stay in Brazil. Though the Brazilian people are casting their votes based on their own domestic considerations, their decisions will have global implications in a manner beyond those of all previous Brazilian elections. Brazilian foreign policy has been unusually inclined to treat international law, sovereign equality, multilateral institutions, and peaceful dispute settlement as core principles, rather than mere aspirational goals. Article 4 of Brazil's 1988 Constitution is quite remarkable. It explicitly prescribes principles such as human rights, self-determination, non-intervention, equality among states, and peaceful settlement of disputes. As such, "peaceful settlement" and "sovereign equality" are constitutional principles of Brazilian foreign policy. It is not clear whether a Fávio Bolsonaro government will fully honor this crucial part of Brazil's constitution. His father was particularly critical of Brazil's traditional support for multilateralism, for instance. And a shift in this specific area would come at a crucial point in history in which Brazil has emerged as one of the strongest and most principled supporters of multilateralism and international law, while European states have miserably failed to uphold these principles in recent years. The fight to restore the centrality of international law and the UN Charter in international relations, reverse the trend in which norms around the use of force are weakened or hollowed out, and muster the political will to collectively address shared threats and challenges will be FAR MORE difficult without Brazil as a full and committed partner.