The Chilean Senate is the upper house of the National Congress of Chile, responsible for creating and approving laws. It consists of 50 senators who serve eight-year terms, with half of the members elected every four years. Senators represent various regions of Chile and play a crucial role in the legislative process. The Senate has several key functions, including reviewing bills passed by the lower house, the Chilean Chamber of Deputies, and approving international treaties. Additionally, the Senate has the authority to oversee government actions and can conduct investigations into public matters, ensuring accountability within the Chilean government.