As the BRICS bloc contemplates its next wave of expansion, the geopolitical and economic circumstances of prospective members have taken center stage. This report focuses on two such aspirants: Argentina and Venezuela, both of whom have submitted applications to join the group. Both countries’ respective political realities, economic conditions, and strategic motivations offer a necessary study into the BRICS enlargement process. Moreover, their membership prospects significantly affect their national economies and the geopolitical balance in South America and beyond.