The Nigerian Senate is the upper chamber of the National Assembly of Nigeria, responsible for making and passing laws. It consists of 109 members, with three senators elected from each of the 36 states and one from the Federal Capital Territory. Senators serve a term of four years and can be re-elected. The Senate plays a crucial role in the legislative process, including reviewing bills, approving budgets, and confirming presidential appointments. It also has the power to conduct investigations and oversee government activities, ensuring accountability and transparency in the Nigerian government.