“Spanish Prime Minister Pedro Sánchez, whose country holds the rotating presidency of the Council of the European Union, and Brazilian President Luiz Inácio Lula da Silva had both aimed to get the deal across the finish line. The two discussed as much in a meeting at the United Nations climate conference known as COP28 last week. But in more recent days, both Argentine President Alberto Fernández and French President Emmanuel Macron publicly voiced their opposition to the tentative agreement. By Monday, the EU’s top trade official had cancelled his trip to Rio.”

https://foreignpolicy.com/2023/12/08/mercosur-eu-trade-deal-rio-summit-climate-france-argentina-lula/