The Senate is mandated to carry out a number of functions including legislation, assenting to treaties, impeaching public officials, expulsion of members, vetting government appointments and investigating malpractice. The Senate has 100 officially elected members with each state producing two.
One of the fundamental functions of the Senate is to ensure that all states are represented equally. Each state has the right to elect two representatives who are given the powers to articulate issues of their various states. Another function is that the Senate acts as an oversight authority. This means members can investigate matters of corruption or malpractice within government bodies and recommend or initiate disciplinary action against offenders.
Another important function of the Senate is to legislate. After receiving various bills, members are allowed to debate and, if necessary, make amendments to the bills presented. After conclusive debates, the members can pass bills into law or reject them depending on the content of the debates that were held.
While the President has the power to nominate or appoint government officials, it is the duty of the Senate to vet appointees and approve or reject them accordingly. The Senate also has power to either approve international treaties or reject them when deemed questionable.