During antiquity the Senate of the Roman Republic was a political institution which was not an elected body. Members were appointed by the censors. After a Roman magistrate served his term in office, it usually was followed by appointment to the Senate. The Senate controlled money, administration, and the details of foreign policy, it had the most control over day-to-day life. The power and authority of the Senate derived from precedent, the high caliber and prestige of the senators, and the Senate's unbroken lineage, which dated back to the time of kings before the founding of the Republic.
In the modern Roman Republic the Senate is the main deliberative body of the government. The senate also plays numerous vital roles which mirror the responsabilities if the senate of antiuquity. Some of these duties are, appointing non-elected magistrates, administering the regional bodies of the republic, managing funds in the form of denarri, approving legislation to be brought before the people in assembilies, and advising elected officals. Senators are appointed by the censors and are most often former elected magistrates who have completed their terms in office.
Below you may view more of the activities and functions of the Senate of the Res publica: