![The heads of state of the Mercosur member countries.](https://www.worldpoliticsreview.com/wp-content/uploads/2023/12/mercosur-summit-brazil-argentina-12112023-1.jpg?w=519&h=259&crop=1)
Every time the political winds shift in South America, Mercosur heads in a new direction. Last week’s summit was no exception. The trade group agreed to invest $10 billion in regional infrastructure, but its free trade deal with the EU hit yet another speed bump, in part due to worries over Argentine President Javier Milei’s plans.