Presidential regimes in Brazil are often seen as facing challenges due to the separation of powers between the executive and legislative branches. However, data shows that Brazilian presidents have been successful in passing their legislative agenda since 1988. They achieve this by forming coalitions with political parties, which provide strong support. The parties in the presidential coalition are highly disciplined, leading to rare defeats for the president in legislative votes. This shows that party cooperation plays a crucial role in the functioning of the Brazilian government.